does anyone know how to make ex
my wordpress site into a url shortner shorting links to my url

This plugin will do the job for you:

Code:

http://wordpress.org/extend/plugins/pretty-link/

You can take a look to lapetite.me

thanks but i found it

Some folks don't like to use their own URLs in emails.... particularly if you have a big list.

An option for those cases would be something like:
budurl
linktrkr

(Google both of those.)

These are managed solutions where your link is a subdomain off of their domain so you get the best of both worlds:
A vanity URL for branding purposes
Less exposure for your domain name being caught in spam blockers

Good luck.