Download dump databases in sql format on the topics?

There are online services where people would have posted dumps of large databases?
Is there a website where I want to implement search by professions (mechanic, cook, etc., etc.), but I understand that in manual there is no time to drive, but still have categories to break.

But I see sites where a fairly extensive list of occupations and search for him. It is clear that there is not one person was working, but while I was out of options, only sitemap.xml and spider to let as someone here suggested.

Maybe more options are there.

UPD: - similar websites (with free content) - overall, this website implements my idea.
Recent still have

Option 2: advise the program, to looking for lists of words from sites and store into a single file.
April 9th 20 at 10:00
2 answers
April 9th 20 at 10:02
Such a variant.
April 9th 20 at 10:04 if still alive

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