Blinkx claims to be the world's largest video search engine and I believe it! My advanced search on 'hiking new zealand' brought up lots of wonderful videos from Youtube. I like the continuous short exerts that play. It is all so much more interative than the straight Youtube search.
My searches on Time Magazine gave only the context of the words because the articles I found were in copyright.
I did a search of the magazines re global warming. There were some 4,000 hits. The oldest loaded was 1989. This search facility could be useful when looking for an article in a 'popular' magazine. By using the Advance search I could limit my search to more recent articles and cut down the number of hits.