Chuck executive producer Josh Schwartz Tweeted encouragement to Chuck fans this morning:

Chuck fans — a new episode airs this Monday. Keep up the #savechuck campaign. #NotANielsenFamily is working….

Not sure what #NotANielsenFamily is? It’s a Twitter campaign targeting companies who advertise on the show, either through product placement or commercials. We Give A Chuck is spearheading the campaign, which has generated positive response from the advertisers in the 2 weeks of organized participation. We’ve got a rundown of how to participate posted here.