I suppose you could look at the angle of people can go to this conference/meet up - but in order to make a load of other content available there could be an interface for conference people/organisers of the meet up. I have heard of a site where you can create an event like go bowling/day at the races and then you can get your mates to put in some money to pay for it, it helps you organise stag dos/hen nights/other events etc. I guess your site appears to be targetted more at conferences/large business events.
I would do some more research before you start any more development of the site..where do you want to take it, into a niche market or a wider market. e.g. what is the market for online conference web apps/software. Is there anything that manages the whole conference lifecycle but also incorporates the networking aspect of it - e.g. sign up/payment, schedule, seminar reservations, networking/discussions/parties/entertainment (during and after conference possible interface with Linkedin?), video streaming, presentations, photographs, after conference surveys and delivery of conference analytics.
Or if you take it into the wider market, as halfer says there has to be some sort of usp or different angle on things. Go down the angle of the website I mentioned where you create an event, invite people to the event and contribute to the kitty/pot of cash for the event (great for events of 10+ people). Or you want to miit people based on interest and miit.me helps you create your favourite miit place and you can then see people who like going to your favourite place or doing your favourite thing by location. e.g. I like flying kites and I want to meet people in Milan who like doing the same. I like tennis and want to miit people in West London who do too. That sounds more like hobby me than miit me though!
I guess there are lots of ideas to go for, but maybe miit.me needs a different slant/angle for its next phase of dev.
add me on linkedin if you want to chat offline