Google ramped up their Washington lobbying presence especially in regards to very specific issues (like SOPA and PIPA), they have since scaled back their presence, but they are not going back to nothing, they are in Washington to stay and that’s a trend through all of tech. Historically copyright policy has been influence largely by the RIAA and NMPA. Technology has been more concerned with patents so far. The battle over Sopa and Pipa was a point of demarcation from which we’ll never go completely back.
An important point though is that the interaction with Washington is now possible on a personal level by means of the internet, people can file a petition and it’s not about Google Apple or Youtube, it’s about people having access to that political machine on an individual basis that they didn’t have before. 25 years ago either you had a lobbyist or you weren’t heard. Now one guy in Northern California can start a petition (on the cell phone unlocking regulations) that reverses the position of the White House on the issue.