Cingular waived the fee for Ms. Case after she posted several complaints on Internet message boards.

Some users have posted complaints at the company's Web site about a synching glitch; Weight Watchers says it is addressing the problem.

But judging from the several hundred people who have posted complaints on PlanetFeedback.com, a consumer-feedback Web site, customers would appreciate more transparency in pricing.

Yesterday, fans vented their anger by faxing and phoning the Mayor's office, which received about 600 calls, and by posting complaints on the Internet.

Some users have posted such complaints on amazon.com.

Mr Hu posted complaints about the ban on visitation rights granted to fellow activist Mr Guo, who was returned to jail last month.

The first notice of the problem came in November, when a few befuddled TiVo users posted complaints on TiVo's Web site.

A number of these sites, like Fight Back and Caveat Emptor, also have complaint bulletin boards for posting complaints publicly.

Is this where you post complaints?