First off, I'm glad you are trying - and don't give up. It's all part of the game that people are busy and sometimes you have to do the heavy lifting.

I think that finding blogs of some of the founders and commenting to them directly (in context at first) is a great way to break the ice. You can then step the relationship up as you feel more comfortable.

Of course you've taken this route which is a good one, since you can email me for starters at niket@getpunchd.com - I think as a community, we entrepreneurs should try our best to help one another.

Just keep up the persistence...it's a good trait to build anyway IMO.