There is an interesting op-ed in the Hill about how Congressional Franking Rules are limiting how members of Congress can use their web sites:
These rules were created decades ago to restrict the use of mass mailings sent to congressional districts at taxpayer expense. Franking Rules, modified to apply to the Web in 1994 and last updated in 1996, state that members may not use non-congressionally provided services for their website, nor link to any site of a personal or political nature.From Robert J. Ambrogi at Law.com.