update Major Internet search engines were crippled Monday morning by a variant of the MyDoom worm, rendering Google inaccessible to many users and slowing results from Yahoo. The attack also affected smaller engines, including Alta Vista, a Yahoo subsidiary, and Lycos. Google representatives confirmed that the MyDoom worm affected performance of the search engine, but, despite numerous e-mail complaints received by News.com, said the attack had a limited impact. "At no point was the Google Web site significantly impaired, and service for all users and networks is expected to be restored shortly," the company said in a statement. A Lycos...