Google, fresh from its $90 million settlement, is being sued for click fraud in another class action lawsuit, this one filed in Pennsylvania federal district court, Google Watch has learned.

The proposed class action -- the third this year -- was filed on behalf of several hundred Pennsylvania and New Jersey residents, and accuses Google of exposing publishers to click fraud following a breach of contract, negligence, unjust enrichment and unfair business practices.

This class action complaint follows the Arkansas lawsuit in May, since settled for $90 million, and the lawsuit brought by Click Defense in California in June.

Find out more about the Pennsylvania Adwords click fraud lawsuit against Google at eWEEK.