As a Maryland resident and Ravens fan, I'm built to hate all things from Pittsburgh, but this looks quite good.<p>As you asked for critiques, I'll list out whatever I see:<p>- Awkward amount of space on the home page between the left and right columns (@1440px). It looks like the left column is left aligned, and the right is right aligned, but on larger monitors that doesn't seem to have an upper bound, so those things are too far apart for me.<p>- The screenshot is too small, and hard to discern. This is mostly an issue only because of the aforementioned space -- so there's clearly room to make it bigger, but even if you made it bigger within the faux monitor, it'd be more visible.<p>- The feature list is a little too close together, space-wise. Horizontally everything's okay, but vertically I'd add about 10-15 pixels between rows. Also, I'd left align the column headers, and perhaps even push the icons for those headers out of the left margin a bit. It's not as bad as the space at the top, but it feels a little off.<p>- The tagline is great, by the way. "Create your own private social network blah blah" is a great, immediately-understood description. I wouldn't mess with that.<p>- The pricing table should have a 'highlighted' default probably.<p>- The 'About Us' section should probably be relegated to sub-pages. I don't know what the honest judgement call is, but at least until you've gotten some more traction, my suspicion is that three college sophomores aren't going to be able to provide the most full-time customer service as a 'real' company. It's impressive to me, but I'm not sure how most people would feel about it -- might ask somebody other than me.<p>I don't have a need for the service enough to sign up at the moment, so my apologies on only critiquing the homepage. Like I said, on the whole it looks good, and my remarks are mostly superficial, but I tried to be as critical as my eyes would let me.