I often have specific authors or periods in mind - such as when I am reading a book and come across a reference to an untranslated author or piece - and so I just search for the source text (usually on wikisource or gutenberg) and make sure its public domain.

I publish them myself, yes - there is a "press" I put them under but its just me. I have a few friends who do reviews and I am also on several academic mailing lists