10-30 minutes a day. I check the latest updates, and the first five pages of new members. I add locals and about half accept the invites. Just met a colleague from the SF Fire Dept. here last month and he plans to attend this week's Third Thursdays civic tech meetup. I also find a lot of good tweetable content here, often reposted here by some of my favorite Gov 2.0 bloggers from around the world.