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Cool, but I couldn't close the java 'ScreenLeap' dialog without using chrome's task manager to kill the java plugin.

(I'm running Ubuntu 11.10, and chrome 16.0 if that helps)

Also, I feel "No downloads, installs" is a little disingenuous - just because it's not installed as a full-time application doesn't mean that it's not downloaded or installed.

Thanks for the feedback. Point taken on the "no downloads or installs". We wanted to convey how easy it is for someone to view your screen but I can see that it doesn't accurately describe the process for sharing your screen. We'll work to improve the messaging.
I think you're mostly there. Maybe just say "inside your browser". That conveys the wonderful ease of use that you've managed to implement.
I would be cautious about changing your marketing based on feedback here. While we understand you are really downloading an applet, 99% of the people in the world won't even care that distinction exists. A/B test on your target market.
Faced the same bug on the same os, browser. And just for fun wanted to see what happens if I open the url in another browser in the same computer ... recursion!
Thanks for heads-up. We'll look it into it.
This is also happening to me as well. I had to "ps x | grep java" then killed the appropriate pid to close the program.
So did I. The viewing browser now displays the screen as it was at the time I killed the process. I guess it hasn't told that the session has ended.
Wow, this is effortless and works well, just like Dropbox. Nice job.
My boss works in a different city, and we're on the phone all the time. The simplicity of this is priceless. I especially appreciate that the viewing side requires no setup. That makes it much preferable to WebEx or Skype when I'm dealing with less tech-savvy folks.
You'd like join.me as well.
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Join.me has been my goto replacement for webex.

This operates exactly like join.me - however I like join.me's shorter URLs - I would suggest copying a format similar to theirs.

However I really like the "share whats in the rectangle" feature.

Thanks for the suggestion on the URL. When we eventually support accounts, we plan to allow you to start a screen session by simply clicking on a name from your buddy list so hopefully the longer URL will be less of an issue for frequent users.
Convenience is what you should be going for. If you're able to generate a short url for convenience, the chances of someone signing up later rather than saying "Signup just to try? fuck it" are higher.

Hell, when generating the url, just make a call to the api at http://tweak.tk so that you can display the short one side-by-side with the long one. Provided your codebase is well formed, a change like that should not be astronomical.

(P.S. Tweak.tk is really awesome. At least check it out.)

If you are going to use an URL shortening service, please go with one that is universally recognised by most tech people, such as bit.ly. I've never heard of tweak.tk and I've never seen it come across my Twitter feed.
The cool thing about tweak.tk is that it's operated by the .tk-registry and you're getting a free generated .tk domain instead of just a page on the domain of the shortening service. Jdyk56.tk instead of bitly.com/jdyk56
Wow, that's simultaneously cool and means I'm not going to use it. http://ddpor.tk looks too much like a link to a scam site.
join.me doesn't run on my computer, it tries to give me a useless .exe file.

This one, screenlap.com, worked out like it said it would.

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Because everyone not running Windows must necessarily have a Mac?
Just tried it. Works pretty well. I especially like the share rectangle region feature.

I have been using https://join.me/ since it allows me to control the other person's screen as well. The setup is just as simple but it requires you to run a downloaded file.

Does it allow me to only share a specific applications? I don't want to show everybody my email and other stuff.
Right now, you can limit what is shown to what's inside a rectangle. The rectangle is movable and resizable although that is currently not obvious from the UI. We want to eventually allow you to select the application that you want to share.
Best/easiest screen-sharing implementation I've seen so far, great work!
I need these to be dead simple as I use them to help walk my Mom through simple tasks on the PC from 2000 miles away.

Thank you for helping keep the hair on my head

If I hadn't found http://join.me a few months ago I'd be jumping up and down right now. This is just as effortless, great job there. I'd suggest making the two options: share a screen, and join a session stand out even more from the rest of the homepage.
Join.me attempts to serve me a .exe file when on my GNU/Linux computers. Useless.
Three thoughts:

1) Can I safely assume you're working on a way to share desktop control, for things like tech support? Seems like the next semi-major logical step.

2) Out of curiosity, how do you plan to monetize this beast? Freemium, with a more feature-rich paid version (voip, desktop control, etc)? Or...something else?

3) Very cool. Great job guys!

1) We want to really nail the screen sharing experience first and make it work reliably for everyone. Remote desktop control and live collaboration are follow-up ideas that we are definitely looking into.

2) Freemium is one option that we are considering. We want to keep focusing on reducing the time it takes to share a screen and see what kind of use cases emerge before deciding on how to monetize it. Besides freemium, we think there might be possibilities for integration with other sites for support or enhancing the browsing experience. For example, a clothing site could have a stylist available that could walk users through the site and help them pick outfits that they might like.

3) Thanks!

Have you tried using PNG or GIF compression? The presumably JPEG compression right now has many artifacts.
That's something we are looking into. We think that there will be different optimal image formats depending upon the use case (i.e., are you sharing an illustration or a photo). We want to see what those use cases are before optimizing.
I imagine screen-sharing may most often be for text and application windows.
How do you see what the use cases are? Are you asking .. or watching? I'm kind of serious here, because as others have stated, this has the 'untrusted' sticker on it for now.

Otherwise: Congratulations. From my day to day 'support the in-laws' sessions: This could be very helpful.

We'll definitely be asking. The trust of our users are very important to us. If you have an interesting use case, please let us know.

We wanted to soft launch something now to start getting feedback about the product. We'll be doing a formal launch in the next couple of weeks and will have a lot more detail to share about us and the company then.

If you do so, add ability to reduce # of colors to speed up refreshes. Clients to whose machines I am connecting to often have lousy upload bandwidth. I'm not sure how hard is it to send events (window move/resize, mouse move etc.) instead of compressed image of invalidated screen region. Even if that's usable only in special cases, it's worth doing.
Great responses. Best of luck to you guys. I'll be sure to bookmark your stuff and follow the progress, and if/when I come across a screen-sharing need, I'll definitely use yours.

Another option for you for monetizing: customer rebranding. For a couple bucks a month, you can use your own logo and/or color scheme and/or stylesheet. Though I'm sure that's at least been considered.

Mind sharing what your particular frustrations with WebEx are? (Not that I'm defending the product, just curious)
For us, the main frustration was showing your screen to someone who you didn't frequently collaborate with. If they didn't have WebEx installed, you would have to ask them to download and install it, create an account, and then get invited to a meeting. The whole process can take more than 10 minutes which is more than enough for most people to decide that it's not worth the trouble, especially if it's for something like a sales demo.

We want to make it as easy to share your screen with someone as it is to instant message them. If we do, we hope people will start using it frequently throughout the day for all sorts of ad-hoc collaboration.

Really? It's more like "Here's a link, click on it and enter your name and e-mail address" then accept the java applet. Takes maybe 2 minutes.
I think the difference is, you don't need the java applet to view, only to share.
Looks interesting, but I do not run java on my machines so this wont work for me.
This looks nice. Is there any way to switch who is sharing their screen among participants? We have weekly meetings for product demos and WebEx allows us to trade of who is the presenter.
Presenter swap is almost done. We should have it available within the next two weeks.
TeamViewer (free) is not bad but it times out after some time and you have to relaunch the meeting with a new code. Will give this one a try.
Very nice, worked flawlessly when I just tested it with a friend (other than having to kill the java process by hand in the end). Thanks in particular for supporting Linux!
Scary!

Works well, and yes, effortless. Impressive.

Nice! I just shared a screen from a Linux laptop to a phone with the Dolphin browser and it Just Worked. Pretty high latency though.
Two things: 1. It was odd that you can't resize using the top and left borders. 2. I'm using 2 monitors (laptop + monitor) and I can't move the rectangle to the secondary monitory.
I have been using https://join.me/ and pretty happy with it.

How is this different from https://join.me/?

In the documentation, I didn't see where I can give control of the screen. That's a difference. But it's a good feature to have.
For join.me, you need to have Flash installed to view someone's screen. Screenleap allows you to view from any device with a web browser, whether it be a PC, tablet, or smartphone. In the same way that you don't worry about what email program someone is on before sending them an email, we want to make it so you don't have to worry about what device a person is on before showing them your screen.
Join.me does have an iPad and iPhone app... but this is a lot easier.
How do you plan to compete with LogMeIn once they have an HTML viewer? Which they either already have or will have and very soon.
join.me does not support Linux.
Just tested this. Ok so it works. Very cool! Now chances of someone correctly guessing a permutation of three 3-digit numbers are 1 in 901^3 = 732 million, but still, is that the only form of security ? I can call someone over the phone & give them my screen key ie. 3 3-digit numbers. Someone else can overhear that & also go to screenleap and enter those 3 numbers & suddenly my screen isn't private anymore...
Once we support accounts, we plan to add privacy controls so that sessions are secured from accidental viewing.
"No installs" - first thing it asks me to do is to install a Java plugin. No thanks.
Java is shown in the instruction screenshots, but it would be nice if it was clearing saying "share your screen if java is installed". I have Java disabled so this doesn't work for me, nor does it work trying to share my Android screen :-)

I had expected something like a cross platform browser plugin that isn't Java.

Great job guys. I love the simplicity.

How are you guys streaming the images down? Any interesting technologies or methods used?

You built that in less than 20 seconds?!!! Damn, you guys are good.
wow. i was curious if this would work on my networked machine and it did. boom! that was pretty quick. a+ guys