Until last week, my site http://i-artz.com was No. 1 for about 3 months for "international gallery of arts" key phrase on Yahoo!. Few days ago, I was dropped to No. 15. Today I couldn't locate my site in the first 10 pages for the same key phrase.
My other key phrases "international gallery of arts and artisans" and "gallery of arts and artisans" still enjoy No. 1 spot respectively.
My curious self just wants to know if Yahoo! is fooling around with their algorithm and if anyone else is experiencing a dramatic change as well :-).
I appreciate any insight.