While watching the episodes and creating my own statistical study is fun, I couldn't look at MMPR as a whole and fully understand the big picture without understanding the Sentai portion. Additionally, there many MMPR-centric sites that have become great sources for me during my quest.
I'd like to share them all with you and add more as I go along:
Power Rangers Union: PR/Sentai Fan Statistics - Stats site on Sentai vs Power Rangers fan-base
The Morphing Grid - Power Rangers wiki site
No Pink Spandex - News site for PR (the entire PR universe) as well as podcast discussing all things PR
Ranger Crew - PR forum - lots of good info came from people on this forum
Power Rangers Central - Another good forum/fan site, links to Zyuranger database
Nak's Power Rangers - Reference site I link to for various characters (i.e. Maria - Punky Brewster from Season 1)
Boycott the Caf - Name inspired by Degrassi TNG, but includes a section rating the re-versioned Season 1 episodes that was quite useful for this blog
Make My Monster Grow!!! - Joey watches Power Rangers so you don't have to
http://www.grnrngr.com/mg/index.php - Episode Mistake Guide for all PR series
