I started using cyberastro.com about 1 years ago. What I really found useful about this site was that there were many good reports available free of cost to the members.
Membership is free. You can generate your horoscope free of cost. They also send useful mails periodically with lots of useful information related to astrology. They have monthly reports which tell you a lot about various aspects - career, finance, health etc. Apart from monthly reports, the site also offers free reports related to various planets (mars, saturn, mercury etc.)
The interface is simple and free services are clearly marked. There are just 2 irritating things about this site - the ’’Citibank’’ pop-up windows, and the need to enter birth data each time you generate a report (this may be viewed as an advantage also because you can generate reports for other people also).
Unlike other astrology sites, which usually bombard your inbox with outrageous mails (making claims such as - you will win 1 million dollar in next 1 week) and junk mails, this site keeps its mails simple and useful.