Google has started an initiative called the "Small Business Network" which is designed to influence legislation regarding business. One of the first actions is to attempt to have a say on the $7 billion from the recent stimulus bill that is set aside for broadband.
Another important issue for the network will be promoting an open internet. This is something Google has been promoting for awhile, with its involvement in last year's spectrum auction, their support for freeing up white space tv spectrum, and their participation in the Internet for Everyone Initiative.
Of course, Google already has an ear with the President. Google CEO Eric Schmidt was recently appointed to President's Council of Advisors on Science and Technology.