Not related to Sci-Fi in anyway, and somewhat ecclectic in their breadth:

• What-If Speculative Modelling - What consumes my spare time nowadays
• Haze Gray and Underway - The best site out there when it comes to up to date Naval info
• The Editing Room - Abridged movie scripts... So funny it'll make you pee
• Margaritaville online - Jimmy Buffett Rules!!
• Kenny Translator - Fmpmfpmpp Pmpmppppppppffm Fmppffmmmpppfmmpmfmmmfmpppfpff!!!
• Nihon Kaigun - Neat alternate universe-type ships for WWII
• Sherman's Lagoon - Best daily newspaper cartoon, well, most violent at least (shark eats, constantly)
• Bad Astronomy - Debunking those nasty, wrong Fox specials
• Space Daily - Everything you want to know about what's going on up above, and then some
• USAF Thunderbird pics
• Bad Human Factors Design
• NASCAR.com - Pretty obvious
• Fox Sports Online - The better of the NASCAR networks

Still not related to Sci-Fi, but here's some stores on the web I frequent. Most of these have GREAT customer service, which I appreciate to no end. SUPPORT SMALL BUSINESS!!!!

• Wild Joe's Beef Jerky - Best damn jerky I've ever had that wasn't home made... Owner has a great sense of humor!
• Think Geek - You want to buy this stuff... yes, you do...
• Cigars International - Best place to get stogies on the web, great customer service too!!
• Cigars.com - An OK place to get cigars, not as good as the above one, but this place's customer service ROCKS!!!
• Thompson Cigars - Who hasn't heard of this place if you smoke cigars... Cool, special club for those who stick with one particular brand of cigar.
• US-Wings.com - Where I got my pilot's jacket from. Another place with SUPERB customer service
• Chateau Grand Traverse -Michigan Wines from the Leelanau Pennisula... Michigan's Wine Country
• Michigan Beer Guide- When I do have the occasional beer, I will have nothing but a Michigan brewed beer!! I am nothing if not loyal to my home state. That, and we make some darn good beer!
• Michigan Wines- Did I mention that Michigan makes good wine, too?