Instructions
You can find a fun compatibility tool on 'Shine'. This site gives you a simple forecast for different sign personality combinations in a love relationship. It also has information on Chinese astrology, daily horoscopes and information on the rich and the famous. All this is offered without spending a penny.
The Astrology Insight site is a nicely designed free website with sensitive and easy to follow information on horoscopes and compatibility advice. It is more in-depth than most other sites I visited and has a comfortable, down-to-earth astrological approach (how's that for an oxymoron?) that I found easy to read and accept.
On Love, Fate and Destiny you will find a quick listing of what signs are likely to do best together and which ones are not in your stars. You can also get your daily horoscope here. All for free.
The GoTo Horoscope is a rather busy looking site, but it not only gives a quick sign compatibility listing for free, but it has some good advice for all relationships that might be valuable to read.
Horoscopes.astrology.com offers horoscopes, astrology, tarot readings, feng shui, numerology, shopping and a lot more. This is a very full website that should give you a good start on whatever you want to know about the stars and divination!
For links to the sites mentioned in this article, please check the list under Resources below.