trig.com is currently under beta
Trigging isn't a popularity contest; it's a way to help you find users with similar tastes to yourselves and similar stuff that you like, and for us to bring you the hottest content at the moment.
If you like what a certain user has in their profile, you can show that user your appreciation by giving their profile a Trig. Just click their Profile Trig! button. You can only Trig each profile once.
Every time when you see the Trig! button, you can click it and Trig something. When the button is contracted, it means that you already have trigged that item. The only thing you have to do is to get your profile exposed, and there are several ways to do this: posting in your blog, uploading images to your gallery, commenting on other users' profiles, and get engaged into Trig.
Every time you Trig something on the site, Trig will remember and suggest similar things to you when you use the Browse or Timeline features.