Astrodienst, which now hosts the Astro-Databank, is also a great site. On it, there is not only a facility for calculating horoscopes, but there are also ephemerides, going back to the year dot.
If you’re interested in star sign astrology, and star sign forecasts, then I suggest that you visit The Horoscope Junkie. I’m afraid I am not the only person providing star sign forecasts on the Web – indeed I have thousands of the competitors. You’ll find my best competitors listed by this encyclopedic website.
What else? I’ve got an eight year old son, who has just started blogging. You can find his blog at tlog.tv.