What's Your Biggest Web Annoyance?

MSN recently did a reader poll about the Ten Biggest Web Annoyances (beyond the nagging problems such as e-mail spam, phishing lures, viruses, and spyware) that really got me thinking. The annoyances were categorized by an Annoyance Factor, as in the percentage of readers who were either very annoyed or infuriated by the issue. Predictably, dubious privacy policies ended up with an aggravation factor of 69 percent, beating out difficult online forms and the over commercialization of the web by a landslide. What bugs you the most?
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