Required - identify 500 yahoo groups (over and above the 55 I have in My Groups) that I can join/post to - the groups MUST allow POSTs and must NOT require group owner approval - i.e. so the posts can load immediately. The found Groups MUST be active (activity shown in last 7 days) with 1000+ members. The groups must be Proxy, Adult or school/college related. Groups must be in English.