Many people here on WW reported that as soon as you visit a page w/ the google toolbar, that page gets spidered. While it's understandable from Google's point of view, personally I think it's a privacy concern, because some pages are not meant to be seen and it's perhaps a bit too aggressive.
But what about gmail? What if you took private pictures and stuck them somewhere on your server and emailed it to a friend? Will google cache the data they spidered from our gmail and then go after url's it found that were privately sent to a friend?
(I doubt they would do this, but I don't remember anyone mentioning it w/ all the hoopla surrounding privacy concerns, so I thought I'd bring it up.) Has anyone tested if this happens?
Well I would have doubted that they'd send users to pages just because they've been seen by the toolbar, but it has been reported widely (even echoed by Brett Tabke somewhere) that the spider comes 10 minutes after being seen by google toolbar. If I recall correctly Googleguy denied it but said that even if it were true, that he believes it would have been covered by Google's TOS and would not be a violation. If not for the toolbar thing, I wouldn't have brought up the gmail thing.