http://keywordresearcher.org - Download the FREE software now for Windows or Mac. It allows you to find thousands of low-competition niche long tail keyword phrases - by saving the data from the HUGE Google AutoComplete (sometimes called AutoSuggest) Database. Longtails are important in your content strategy (your SEO strategy) because they allow you to target niches that are not typically heavily pursued by your competitors. http://www.youtube.com/watch?v=WI_kT_VMaUU