Here are some simple tips to Promote your website to get high Traffic
1. Promote your proxy by Social Bookmarking.
2. Promote your proxy to Google and Yahoo Groups
3. email it to your friends list in IMs and Address Books of gmaill/AOL/Yahoo etc
4. Submit to proxy toplists
5. MySpace Bulletins
If you want, you can check these SEO and traffic building SEO TIps too.
