Flagry

Flagry is an event platform built around social relationships and geographic locations. It enables users to know about events that their friends are attending or that are happening within an area they are interested in.

It enables individuals and event organizers to list various types of events for free, ranging from garage sales to major concerts.

Users can follow other users as well as "flag" events; this enables their followers to see what they are listing in addition to what they are up for, as they please.