During the course of building a financial miner, we found sites committing a lot of crimes against meta data. The most recent are courtesy of the SEC.gov and Investor.gov sites. Perhaps the result bad copy rewritten by software or humans?
These are great sites for finding financial and business information, but some of their pages contain poorly written meta tag data that make indexers go ga-ga gu-gu.
To illustrate, check the meta description tags of the pages at the following URLs:
Links and CSS style instructions declared as meta description data? Great!