a) Abuse feature - Need to increase the url field length by at least double. I started by generating tiny url's, but if you could increase the length - It will be great.
b) Need to remove the whitespaces (if not minify) in the common.js. There is a good 10 blank lines at the end of the file, and else where. Love to see the site loads a second faster.
c) The common.js file can be cached.