I personally have no clear guidelines, and would rather be over-than-under inclusive. Some startups are tech-heavy, others are non-profits and civic engagement mechanisms, and still others are advocacy organizations. I'm open to all groups, so long as they're interested in innovation of the law, the practice of law, or access to law. I'm particularly interested in groups that want to find new ways of doing old things.
I would note though that I'm not very interested in groups that sell law practice technology to lawyers unless its distinguishable different or innovative. There are tons of companies selling run-of-the-mill software to lawyers or e-discovery firms, but feel free to comment and debate if as to whether you agree or disagree.
Lastly, I'm sharing the list of law-related startups that I've come across in the hopes that the community will contribute. Feel free to add in your own group, or groups that you've come across. It seems as if there's been an explosion of law-related startups in the last two years. Certainly, the recession resulting in jobless lawyers was a catalyst. Maybe, as we collect more information, evidence of that trend will become more clear. Don't be offended if you're not already on the list--this is my first attempt to organize information and get a clearer picture of the community.
Here's the link to the GoogleDoc: http://tinyurl.com/l24ccne