I could really use some business advice.
whatusername: Put it this way - you're doing more revenue than half the site featured on here - and probably making more profit than twitter or facebook.SwellJoe had some good advice.  To use the E-Myth distinction - work "on" your business, not "in" it.  (also - probably read E myth revisited).  
 Look at adjoining niches?
 Create a new niche on the same kind of platform?
 begin adding breadth and not depth
 Information Products / ebooks / lulu / etc - sell well and with a significant profit margin (think parrotsecrets)Do you need funding?  What would you do with extra cash?  If your aim is to build the next facebook - you need servers, staff, power, etc..  If you just need to grow/expand - what would you use the cash for?Other book recommendations might be (How to Get Rich - Felix Dennis (ignore the title - fantastic book) and maye the 4 Hour Work Week - Tim Ferris - I haven't even read it - but I know that a large part of it was his story of automating his product sales online.  I'd guess it should have at least one $15 idea)