There's an official #bitcoinweekend channel on Freenode.
A weekend of talks, discussions and workshops for Bitcoin contributors, domain experts from a wide range of fields, enthusiasts, and everyone curious about Bitcoin. This is a great chance for everyone to meet new people and learn new things. We will discuss the code, the infrastructure, the community, the legal and political implications; we will look into the mechanisms of currency systems, security concerns of running Bitcoin infrastructure, and run workshops that show you how to participate. As the Bitcoin community grew it has become harder to separate hype from fact, charlatans from helpful guides. We will attempt to bring clarity, and to critique the Bitcoin system and community with a sober attitude. Though it's also worth pointing out that any social experiment worth having requires a fair amount of anarchy, playfulness, and suspension of disbelief... We're quite excited about this event; there have been very few Bitcoin contributor meetings so far, even outside the UK. We'll try to record the talks and will make the videos public. The event will happen over a weekend: Saturday, 24 Sept 2011 from 14:00-18:00 we will have talks and discussions. Sunday, 25 Sept 2011 from 14:00-18:00 we will have workshops.