Michael Arrington and Jason Calacanis are organizing TechCrunch20. It is definitely worthwhile attending. They have an impressive list of industry experts attending (among others… Marc Andreessen, Caterina Fake, Chris Anderson, and my favourite.. Marissa Meyer).
Startups can launch their new stuff (if chosen) for free to a great audience and get free entrance to the conference.
Over 600 companies were submitted to get one of the 20 launch opportunities! Technically speaking the deadline already expired, but if you have the hottest company in the world and want to launch at TC20 I would send in your submission form today.
Or buy a conference pass