Our favourite source of Lego inspiration, Brickshelf is down. The reasons for this are still unknown. In the forum, we speculated that the possible scenarios are:
1) Brickshelf has closed down and will stay that way
2) It has been hacked
3) This is just server/software maintainance

Whatever the reason, i sincerely hope that brickshelf will return.

Update:

Apparently, the owners of peeron are negotiating with Kevin, the current owner of brickshelf, to take over bussiness. It was intentionally shut down.