Thanks for the submission. There are few thoughts from me:
- I wonder what does it mean by "customizable", i.e. how is this different from DuckDuckGo with its duck.co?
- I think that the UI can be much better, a good UI does not necessarily to have shiny elements (shadows, gradients, etc). Good UI shall be consistent (in layout, colors, look-and-feel) and intuitive (assume you are a new user, by only looking, one should know what to do next). Maybe read some tips from <a href="http://goodui.org/" rel="nofollow">http://goodui.org/</a>
- Why I should register for an account? Reasons are not that clear.
- When I see the signup page, I was amazed that you implemented such many external account linkage. Maybe you can you consistent image sizes or even just text without image.
- When I navigate to the home page, it's not pretty clear what I should do: login? signup? "learn more"? or navigate via the navbar?
In summary, I had mostly UI issues, I was once like this, did not care anything about UI, but later I realized that UI, even with a super powerful back-end, is still a very important part of web development since it is what faces the user, and it is what made the user feel. Good luck and have fun :)