Turntable newbie info site?

After reading the various threads here regarding TT specifics, my head is spinning.  MC vs MM, cantilevered, diamond tip vs nude, need for separate phono stage, various tone arm types and need for set up.  I googled and the TT sites are usually too elementary and don't address the more specific points.  Is there a site for some one unfamiliar with audiophile TT technology but willing to learn knowing it is a steap learning curve?

I last played vinyl in the early 1980s on a Technics and Kenwood, mass produced, department store type model.