I am considering making a simple URL shortner service, in the style of bit.ly.
I am wondering on the easiest method of doing this URL re-writing.
I am familiar with .Net and a little PHP, and moving towards using more Open Source languages as I am falling in love with MySQL over MSSQL more and more.
I assume that it is a simple URL 301 redirect that happens when bit.ly creates a short URL, or a header redirect.
So my question is What server is best for SEO/ programming redirects - IIS or Apache?