I'd recommend using boldurl.com to track your link statistics and to shrink your url's at the same time.... This way you can see what links are the most effective at generating traffic by giving them different shrunken names...for example: condense link b1 into b2 and track it...then you can condense b1 into b3 and track b3 as well.....this way you can see where your click through's are coming from. Look up the various features of boldurl.com...i think you'll be interested in it.