Even if you aren't looking to specifically raise money right away, it's great to join this community of entreprepeneurs, influencers, investors and early adopters.

First you'll need to create a personal profile. Then you'll be able to create a profile for your startup. Invite people who know you and your company to refer it.

Again, AngelList is listed as a service to help you get funding, however having an active profile can see your startup featured and drive a substantial amount of traffic.