Thanks for the feedback.

Why do you prefer science.gov over scitopia, specifically?”

I don’t prefer science.gov over scitopia – I just listed them in the same order as the original posting. Personally, I find science.gov too limited in coverage for the subjects I research. I singled out Scirus, TechXtra and Worldwidescience because they usually provide the best results for the type of information and subject matter that I need at the moment. In another 6 months I might be looking at different topics and industries that will require different databases. “Horses for courses” as the saying goes

Very useful list, thanks for sharing it. I am curious, why did you select the 3 search sites that you did? Why do you prefer science.gov over scitopia, specifically? I always thought scitopia had the best sources. Either way, I am glad you didnt list Google Scholar!

Many thanks for the alert on Nextbio. Looks very interesting. I like the suggestions it comes up with when I start entering search terms and the tag cloud on the results page. Both are excellent ways of proposing alternative approaches to your search. I’ll have a more in depth look at it once I am back from my travels.

Karen