many forum members to register with their email addresses despite your promise to delete them at the end of your trial. I didn't do it, so I can't comment on that aspect of the site which is only available to members.
Otherwise I like it - in fact I like it a lot, particularly your homepage image.
One important point - check and double-check your text for spelling and grammatical errors. Completely at random I found: Accumlate (accumulate) and Accure (accrue) - both in the Java applet window for the compound calculator.