Wanted: RSS calendaring

At the top of my wishlist: a good RSS calendaring tool that would let me share my whereabouts with friends, family and well-wishers. (If anyone has a technology that can specifically exclude ill-wishers, so much the better.) The absolute minimum that I need is...

Tag aggregation

I’ve created a category in this blog called OD2005 and I’m experimenting to see which blog search engine picks it up first.