Here are different research links on the subject Net Neutrality.
Reflections on Net Neutrality
BitTorrent: Shedding no tiers [BBCs] Newsnight’s ubergeek talks to BitTorrent inventor Bram Cohen and finds him distinctly equivocal about fears of a two speed internet.
Reported incidents of problematic issues
Broadband Reports has this interesting little snippet from AT&T’s terms of service: “AT&T may immediately terminate or suspend all or a portion of your Service, any Member ID, electronic mail address, IP address, Universal Resource Locator or domain name used by you, without notice, for conduct that AT&T believes … tends to damage the name or reputation of AT&T, or its parents, affiliates and subsidiaries.”
AT&T Changes its ‘Terms of Service’ The email from AT&T
Harts lawsuit against Comcast (pdf) Californian Hart sues Comcast for not delivering the internet Hart has bought.
AP Tests Comcast’s File-Sharing Filter To test claims by users that Comcast Corp. was blocking some forms of file-sharing traffic, The Associated Press went to the Bible.
Verizon Rejects Text Messages From an Abortion Rights Group Saying it had the right to block ”controversial or unsavory” text messages, Verizon Wireless has rejected a request from Naral Pro-Choice America, the abortion rights group, to make Verizon’s mobile network available for a text-message program.
On the legislation
Net neutrality to get new life in Congress Article on the legislation
Internet Freedom Preservation Act (Introduced in Senate) The proposed legislation paper.