I created a site where you can get feedback for your website and learn about usability by helping others: http://usability.userium.com/
First I learned Meteor from the "Discover Meteor" book and built the 'Microscope' app, but then decided to do this project with the 'Telescope' open source project, due to its additional features.
The idea is that first you can
(1) use the usability checklist: http://usability.userium.com/c/usability-checklist to catch common usability problems on your website.
(2) After fixing obvious problems, you can ask for feedback on the site.
To increase the amount of replies, only 3 website feedback requests are posted on the site per day. All the feedback is public, so that others can learn and apply the tips on their own websites.
This is a work-in-process, so please let me know if you find this site useful? How could I improve?
Many thanks in advance!
-Nina, nina@userium.com, http://usability.userium.com