A place where you can add outfits and get hypes. Unfortunately, you don't even need to have creative outfits to get hypes.
Typical Lookbook photo:
An extremely thin girl wearing Ray Bans, a pair of short shorts, and an oversized shirt. She may or may not be holding an expensive designer bag. She's pouting at the camera or looking down. The setting is at the most dingiest, grungiest area.
Go on Lookbook.nu right now and see if there is an outfit like that on the front page.