arikgub - 4:57 am on Jun 20, 2011 (gmt 0)
all of a sudden that ehow result was switched out for a different ehow page.
Happens a lot to my pages. There is a large volume query where Google ranks one page of mine on positions #5 to #10, and is constantly changing the page from homepage to an inner page back and forth.
At the beginning, I thought it was a split test - google was trying to determine which page was the most relevant for that query, but since this "test" has been going on for many months now, I think it's just an inherent part of the algo.