ISPs File Suits Against Spammers Four of the nation's largest online providers Thursday announced a new round of lawsuits aimed at e-mail spammers, including the first major case involving spam sent via an instant messaging service. &lt;BR&gt;&lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2"\ color="#666666"&gt;&lt;B&gt;-The Washington Post&lt;/B&gt;&lt;/FONT&gt;