text: Web Site for Complaints Sparks Lawsuit (AP) AP - When Alan and Linda Townsend were unhappy with the sprayed-on siding applied to their house, the frustrated couple launched a Web site to complain and to give other unsatisfied customers a forum. Visitor postings to the Web site said the product, Spray on Siding, cracked, bubbled and buckled. For their efforts, the Townsends got slapped with a lawsuit by the product's maker. The federal case may help shape the boundaries of online speech.