lucy24 - 12:26 am on May 31, 2013 (gmt 0)
"back to top" would typically be a link to a fragment identifier on the same page as opposed to thumbnails which I would assume is another document.
Yes, that was my point. They don't distinguish between internal and external links, but at least they do distinguish between on-page and off-page links. With gwt, one can never be 100% sure of these things.
Good practice to dumb down the internal linking
Is it dumbing-down? I'd have thought the opposite. If the whole site is about widgets, you're trusting to the reader's intelligence to figure out that "blue" means "blue widgets".
btw, I don't think g### knows the difference between "thumbnails" and "top". They just know the difference between <a href = "http or <a href = "/ on one hand, and <a href = "# on the other. Unlike certain robots I could name, who find this nuance too subtle to grasp.