Possible Clues:

• AOL, for one, in brief
• AOL, e.g.: Abbr
• Verizon Fios, for one
• Xfinity, e.g.: Abbr
• Co. affected by net neutrality
• Web gateway co
• AOL or MSN, e.g., once ..
• Co. like AOL or AT&T
• Comcast or Verizon, for short
• Cable co., maybe