Even so I don't really see the need for this site. When I launch a project I post it to my web site portfolio or blog then aggregate out to Twitter/Facebook/etc. What advantage are you offering over established publishing tools?
The idea behind todayimade is to collect and aggregate ideas for DIY projects in a very broad sense – stuff you make, sew, cook, craft, build etc., and to let people build on each other's ideas. Right now the feature set is really small, but we hope to implement stuff like "tell me more about how you made this or that" and "this inspired me to do that" in the near future.