In a perfect world, the so-important advice "do not reinvent the wheel" would be extensively followed. In practice, everyday millions of wheels are reinvented simply because someone didn't know an existing solution for a specific problem. The best way to find a library, today, is googling it, but it's not always obvious which keywords to use. The lack of a tool for finding solutions is very counterproductive for the dev world as a whole. Stack Overflow is not very receptive for recommendation threads. So what about a new SE for it?
Software Recommendations launched 2014-02-18:
Software Recommendations Stack Exchange is a question and answer site for people seeking specific software recommendations.
Good software recommendation requests have two components: a purpose (a task to accomplish, a user story) and some objective requirements (a minimum set of features). Please read our question quality guidelines before asking for a recommendation.
We request that answers demonstrate how the recommended product meets the requirement and is suitable for the intended purpose. Please read our answer quality guidelines before answering a question.
Hardware Recommendations entered public beta 2015-09-29:
Hardware Recommendations is a community-run website to help you find a specific product for your needs. That means you can ask for a recommendation for hardware to perform a specific task. However, you should be aware that "hardware" is not an all-encompassing term — for details of what hardware is accepted on this site, please see What is Hardware?. In essence, we can help you if you're looking for a recommendation for hardware that is "an electronic item that is, interfaces with, or connects to a computer to operate".
Stack Overflow isn't very receptive to requests for recommendations because more often than not those questions don't really work with the Q&A philosophy & format, for a variety of reasons:
- Voting fails, people vote for their favourite suggestion instead of the more useful solution,
- Recommendation questions typically don't show much prior research (which makes them bad questions in general),
- Recommendation questions are often time dependent,
- Recommendation questions are very attractive to link only answers, and link only answers are not answers,
- Recommendation questions are extremely attractive to spammers,
- blah blah blah...
Given that Stack Exchange sites share exactly the same philosophy & format, I don't see how a separate site for recommendations would work.
PS. You might be interested in checking out Slant. Not everything needs to be on Stack Overflow / Exchange, and the Slant folks are doing a very good job so far (not affiliated, I just like their service).