I have a handful of pr 1-7 sites, and am looking to interface with other webmasters to exchange links. Pr does pass, and I have proven seo results from these sites. Many sites have over 1,000 pages, indexed daily and have few outbound links.
This is a great opportunity to reach a higher rank in the engines, with the opportunity to get exposure on pr 7 sites.
Please send a pm if you have multiple sites and want to increase your exposure.