Startup altruism (gabrielweinberg.com)

Of course, as one of the Hacker Angels, Gabriel himself contributes quite a bit to the pool of startup altruism.

My problem with altruism is one of audience. Many times I've offered to give aways books for free or to match donations to Wikipedia... but very little seem to take my offers. Granted this is all done through my blog. I even send out my links to to Twitter and Facebook. I often get very little interest. Maybe I come off as being disingenuous? Maybe my writings aren't motivating enough?

I truly feel a yearning to help others. Any advice?