Heather Massey's The Galaxy Express blog recently hosted a three-part article series called Branding Science Fiction that has stirred up discussion on the net about what is and isn't Science Fiction Romance--and why we should care.
Here's an interesting discussion on the Fierce Romance blog [Science Fiction...for Women?] that you shouldn't miss, for the amusing quotes if not the discussion of SFR elements.
Ella Drake posts a humorous account entitled Green Goo: It's a Technical Term on The Raven Happy Hour blog that explores how science can create the basis for some fabulous What If? world building.