Google and robots.txt exclusions
It seems that Google does a very poor job of handling files that have been excluded by robots.txt. It seems that Google loves to display URLS only, for any file that they’ve visited from another file, even if that file is excluded explicity via robots.txt.
That behavior seems strange. Why have a wildcard to remove dynamic pages and then show the pages in a very untidy looking manner? The other thing I’ve noticed is that they never drop pages naturally, only if you use the URL removal tool.