I’ve been seeing this feature appearing in a lot of results recently. When searching for a group of keywords, when you reach the destination page there is an overlay such as the one below:
I’ve only noticed this recently and it doesn’t appear on all destination pages?
Clicking on the “Jump to text >>” link takes you direct to the most relevant place on the page for the search query.
It appears that this is a feature of the IE Google Toolbar, however it must’ve been automatically enabled as it’s not something I chose to switch on?
Now, I’m not complaining as I often find this useful to quickly find the information I’m looking for, however other users don’t like this feature as can be seen in this thread:
http://www.google.com/support/forum/p/Web+Search/thread?tid=5e7f4946c1b363d4&hl=en
If you want to disable the “Quick Scroll” try the following:
1) Click on the wrench icon in the toolbar
2) on the Tools tab, deselect “Quick Scroll”
3) Click Save