Internet giants Google, Facebook, Amazon, Twitter and a slew of other high-profile tech companies weighed in on new rules that are currently being written to keep the Internet open.

The CEOs of of those companies, along with some telecommunications and media firms, such as EchoStar and XO Communications, sent a letter to the Federal Communications Commission chairman Julius Genachowski on Monday supporting his efforts to create official regulation that protects Net Neutrality.

The process for developing these new rules, which Genachowski proposed during a speech last month, will begin at the agency's monthly open meeting in Washington, D.C. on Thursday.

The FCC has already received several letters from lawmakers criticizing the new rules. And the big telecommunications and cable companies, namely AT&T, Comcast, and Verizon Communications, have opposed the new rules.

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