Google not honoring robots.txt ?

I have a simple robots.txt in the root of my website with the following:
User-Agent: *
Disallow: /my_folder_name_not_to_index/



where "my_folder_name_not_to_index" is the name of the folder I do NOT want google (or any other bot) to index. However I can still search google and find items listed.

Help ? Once items are in Google's cache, can they ever be removed ?

Hi,

I'd suggest using a no index meta tag as well as a robots.txt file to prevent caching. You can get rid of pages cached by Google, how quickly depends on how keen you are.
Take a look at this Google Help section that deals with both.

ok, that worked.

one more thing, i also have the following in my robots.txt
Disallow: /*.pdf$
Disallow: /*.PDF$

However, I still see several links to pdf's that show up with a google search. I dont have the directories listed though.