It seems awfully close to lmgfy and surely there are always better sources which could be linked to...
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No, it's really not.
I don't think they add anything over the answer already says. Linking to external resources should be used in order to provide citations and references, or elaborate guidance.
When you're linking to a a Google search results page - you're not doing anything like that.
(I'm not even talking about the fact some of the results in the search results are downright bad and wrong)