EFF: http://blogs.eff.org/deeplinks/archives/001459.php

The Electronic Frontier Foundation blog put together a rundown of analyses of the Gmail privacy concerns and ongoing legislative efforts to address them. The upshot is that the critics are overreacting, creating legislation far worse than the theoretical problems. If adopted as is, the recently introduced California bill would prevent ASP email filtering altogether and prevent such email niceties such as making URLs appear as clickable hotlinks on web-based email systems.