Our business is a meeting center / entrepeneurs hotspot. we opened up our huge lounge for self-employed people who are looking for a place to meet new people and exchange knowledge. This works. The people also connect online, and twitter is a huge deal for that network. check out #s2m on search.twitter.com, and youll see. On good days, we end up in the dutch top10 hashtag. 
This open platform (offline and online in combintation with mindz.com) creates a vibrant situation with alot of energy, people meeting, exchanging knowledge, helping each other and starting new entities together. This is an interesting business model, not seen before in our world of meetings and events.