Your data is your lifeblood (firstround.com)

Segment.io and Zapier have been making our lives easier on this front.

There is also the issue of Google Analytics / Segment.io hoarding massive amounts of BizIntel. I prefer Piwik:

https://piwik.org/

The EFF.org site uses Piwik and for good reason.

And where possible, I like to move data around when I can and make it portable:

http://dataportability.org/