Web developers should be using the web!
If you want to build something that people want to use.
If you want to build something with the coolest technology.
If you want to keep up.
You have to use the coolest sites out there that web users are using.
Right now, you should be out there on the Interblag tweeting, blogging, vlogging, 'networking, flickring and spacing out.
How could you possibly be building the best web apps if you aren't out there using them?!