Google Insight for Search.
Now sure as eggs are eggs I'm no SEO expert, and yes I've found that finding 'goldilocks' keywords (not too popular, not too obscure but 'just right') have appeared to make a difference to blog posts visits and also my Squidoo lenses. They've also influenced url selection and also title selection too.
But that is what got me thinking about originality. If writers and publishers of on-line material chase after key words then where is the spark of originality?
If Harper Lee had done a search on 'To Kill A Mocking Bird' would she have thought woah!! Not very popular steer clear? How about Shakespeare? 'Much Ado About Nothing' hmmm not many searches for that...So it seems to me there is a conundrum. Do you go for the unique and rely on your creative genius to be discovered, or do you go bland and follow the sheep?
Google after all is predicated on technical search assumptions not artistic originality.