Extremely useful for finding high quality research tools and resources. Smaller in scope than the other general tools, but superior to most in the quality of the resources it covers. An edited selection of web resources. Capsule reviews of listed resources are often excellent, but only cover a limited number of the total resources in this service. Help direct search Great tool for finding subject specific databases and search tools that are not covered anywhere else - including by the giant search engines.
Interface takes some getting used to.
Clear ratings, decent coverage, links to unrated sites, fast search engine. Relatively useful for separating the wheat from the chaff.