Does anyone know of a tool that I can plug a huge list of 3-4 word keywords into and it will group them based on multiple common words in the keywords? I don't know if that made any sense, but: Say I build my keyword list in excel using both manual methods and tools. When I'm up to a few hundred to several thousand, I run it through a tool that gets rid of duplicates. Now I'm left with a long list from all these different sources. Randomly in the list, I end up have the following terms: Cingular Ringtones Free Cingular Ringtones Cingular Realtone Ringtones etc. I would put those all in one adgroup, but what a task it would be to sift through thousands of keywords to make logical groupings like this. Is there a keyword tool that will sort my list based on common words in each keyword?