Keyword Tools

Google's Keyword Suggestions
From the horses mouth. A great set of search tools but all a bit fiddly.

Keyword Density
This tool will analyze your chosen URL and return a table of keyword density values for one-, two-, or three-word key terms.

Another keyword density tool
Interesting counting tool with a bubble cloud to display results. Still get individual results in a table below.

Keyword Difficulty
Strange sort of mysterious 'difficulty' rating. How difficult to rank well for a given keyword. Seem fairly accurate but probably just working on how many pages google returns for the key phrase or key word.

Google Keyword Suggestions Interesting results, always good for generating ideas for Google keywords.

Overture Keyword Suggestions
Fantastic tool. Overture keyword search numbers this month for a keyword, plus related suggestion. Great but a shame you can't just put in a list of keywords and see their results only without the suggestions. Never mind.

Keyword suggestions
Another Keyword suggestion tool.

Keyword List Sorter
Paste in your list of key terms and this tool will remove any duplicate entries. It will also re-order the list alphabetically, saving you the time it would take to edit your list manually.