Is Google search Case Sensitive?

Yes it is case sensitive.

But Google announcing it is not case sensitive. (source: http://www.google.com/support/websearch/bin/answer.py?hl=en&answer=134479)

"Search is always case insensitive. Searching for [ new york times ] is the same as searching for [ New York Times ]."

This is what Google lies.

For example please observe the results on Google for queries "Ring Binders" and "ring binders" and "Ring binders" and "ring Binders".

All the first 10 results are not same in all above search results.

But yahoo search results are not case sensitive.

So guys.. Be wise to choose keywords!!