Hoople - 3:22 am on Aug 31, 2010 (gmt 0)
The recent Google Mayday update has made a reduction in the value of "long tail searches" like "widget green little". Some have seen a slight change, others more drastic.
Your time is best spent on become a better site for "green widgets". Try to work at continually improving your site's green widget content. Researching new keywords that relate to green widgets may have move value. A few queries in a thesaurus might give some new words as other ways to say green to use with widget.
Spend some time looking for new keyword areas that your competition may have overlooked. Use several free online tools and then combine the results to compare to your site.