I'm not sure there will be a repository of info sites et al here but I came across this recently which surprised me as I know Fred Tinseth(sp?) passed away a long time ago. However, his poop sheets helped me a lot when I was a newbie so I post here fwiw.
Poop Sheets by phred (http://www.manmrk.net/tutorials/RV/phred/phredex.html)
--Dave
Thanks for posting the link to the archived Phred's "Poop Sheets"; these should be required reading for every RVer, new or "seasoned", IMO. Even though some of the information was last updated in 2004 (I think that Phred died in 2012) and obviously doesn't include newer technologies, the straightforward, basic advice on many aspects of RVing ("don't do anything stupid!") remains accurate and viable today. IIRC, Phred wrote technical articles for the Escapees magazine, beginning over 35 years ago; his clear, no-nonsense style of imparting practical information from long, "real-world" RVing experience was, and still is, refreshing.
A true gem, especially for newbies like me!! Thanks for sharing!