43things.com has just been in the air for a week and already do they have 3,000 people are doing 10,804 things! That’s an incredible achievement in such a short period of time and bodes well for the future success of the application. 43things.com will undoubtedly soon become a reference point for discussing performance with Rails.

Speaking of performance, Bob Cottrell is their main man on MemCached integration and also the contributor of MemCacheStore in Rails 0.9.3. He has promised to start writing about how best to use MemCached with Rails and were eagerly awaiting his guides.