Best keyword research tool
May 29, 2008 7:22 AM Subscribe
What are currently the best keyword research tools or software?
I'm looking specifically for something that can give me the amount of searches performed by keyword/phrase on major search engine, by time period, and by country.
For example: "2,020 searches for 'metafilter questions' in Google Canada for 2007". And of course, Yahoo! and MSN numbers would help, too, if possible. Thanks in advance.
I used Google's free keyword tools, but they don't offer concrete numbers.