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Sunday, January 13, 2008

Keyword Selection Tools for Search Engine Marketing (SEM) and Online Pay Per Click (PPC) Advertising

List of keyword research and keyword selection tools for search engine marketing (SEM) through pay-per-click (PPC) advertising.

- Google AdWords Keyword Suggestion Tool
- Overture Yahoo! Search Marketing (Y!SM) Keyword Selector
- Digital Point Keyword Selector Tool
- Keyword Discovery (Paid with free trial)
- Yooter Keyword Selection Tool
- Spyfu.com
- WordTracker.com (Paid with free trial)
- KeywordSpy.com (Paid with free trial)