Due to lack of interest, the Real Spellers website is permanently offline.
If you are interested in SWI (Scientific Word Investigation, or Structured Word Inquiry, depending on who you talk to), in addition to several FaceBook groups, you will find the following sites and books useful:
ToolBox 2 - the ultimate compendium of SWI knowledge (1 free theme, the rest by subscription)
Orthographica - videos made to accompany Spellinars (by subscription)
WordWorks Kingston - the website of Dr. Pete Bowers, the worldwide guru for using SWI in the classroom.
Teaching How the Written Word Works by Peter Bowers
Beneath the Surface of Words: What English Spelling Reveals and Why It Matters by Sue Scibetta Hegland
Backpocket Words: Sharing the Essence of English Spelling by Gail Portnuff Venable