I wish the site was mine, I feel like it's partly mine, just from contributing!
Sites updated almost every day with another Robot somebodies made, and it's cool because everyone uses different boards, so you can get help from all spectrums!
And we've had a few company's run some contest on Letsmakerobots, but I think the coolest thing so far, is that one of the users got hired for a robotics company just by posting and helping people! They offered to fly him to China and give him a job, and he took it! He designed some "universal" brackets for sensors, including the Sharp Sensors, PING sensors and a few others, and now they're being sold on a website!
You have GOT to take a look, these are the coolest things ever! (And even better because they were designed by a user!)http://letsmakerobots.com/node/8969
Feel free to come visit the site, people are willing to give feed back with anything you may have.
The site even has a cool spot for posting Components so users and browse them, and even purchase them!