Doing something special for the 20,000th member would be nice, but it is also a celebration of a site milestone. So we should plan way to celebrate the site as a whole. Perhaps give 20 acorns to each member (1 acorn per thousand), a special banner for that day. An article about how ATP came about, from DG, to Cubits, then ATP. You could talk about the early days of building the site, submit questions to charter members about those days and add them to the article. Anyone else have Ideas on how we could celebrate, that milestone?