Of course, everyone knows about pinterest and houzz. Here are a bunch of other Modern sites I've used and liked.
Retro Renovation: A wildly popular blog on all things Midcentury Modern; home furnishings, design advice, even
the occasional house listing.
Atomic Warehouse : Midcentury furnishings and design items. Based in Harrisburg, PA
Lotta Livin' : Source for Mid Century Modern Lifestyle, Design, Art, Furniture and Architecture.
MidCentury Mobler : Large Mid Century furniture dealer in Northern California.
Lushpad : Buy and Sell Marketplace for Modern Collectors.
Rago Arts and Auction Center : Located in Lambertville, N.J., across the river from New Hope, Rago is one of America's top auction houses in the sale of 20th C design and David Rago is an authority on MCM art and furnishings. Modern Mini Houses: Yep, if you really look hard and you're really into it OR if you have a very young daughter, you can even find MCM dollhouses!
Jetset Modernist: A well-written and informative blog about modern architecture with easy to access archives.
DoCoMoMo : Documentation and Conservation of Buildings, Sites and Neighborhoods of the Modern Movement.
MidCenturyStyleMagazine : Resource, blog and board for mid-century enthusiasts, including a newly
launched Mid-Century Motels.
VeryVintageVegas : Real Estate site featuring the many Mid Century Modern properties areas of Las Vegas and Henderson. It's fun to see what's happening there too.
MCMLeague.org : Portland, Oregon's thriving Modern neighborhoods are featured here as well as many, many local and national resources, repros of old magazine advertisements, lots of Portland MCM pictures, how-to tips. A large r resource for preservation and architecture.
Modern Homes Philadelphia : Modern enthusiast and Philadelphia area realtor's website with a wealth of local resources including local projects of modern Architects past and present.
Cape Cod Modern House Trust: From their website: "Incorporated in 2007 to promote the documentation and preservation of significant examples of Modernist architecture on the Outer Cape . . . In the late 1930's a group of self-taught architecture enthusiasts began building experimental structures based on the early Modern buildings they had been in Europe, invited some of the founders of European Modernism to buy land, build summer homes and settle. Like their local hosts, the recently emigrated Europeans admired the traditional Cape Cod ‘salt boxes’: simple, functional, owner-built and designed for long winters. The Modernist summer houses were inversions of these, oriented to capture views and breezes."
Frank Lloyd Wright's Taliesin: Don't miss this AMAZING virtual 360 tour of Wright's Wisconsin home featuring immersive views inside his studio, home, school and several locations on the estate grounds on and near the farm where he grew up!
American System Built Home by F.L. Wright: A more modest 360 Virtual Tour of a Wright designed home from his series of standardized “system-built” homes, known today as the American System-Built Homes, an early example of prefabricated housing for low to moderate income families.
Atomic Ranch: Midcentury Marvels: Magazine for architecture enthusiasts of midcentury homes. A (not so great)snapshot of my own home appeared in one issue a couple years ago.
MidCentury Architecture: An endless archival list of links to modern architecture blogs and websites featuring architects, renovations, homes, rentals, you name it!
Paul Kaplan Palm Springs Real Estate: If you want to see some of the coolest of the cool in MidCentury Modern architecture and stuff, here is " local boutique-style Palm Springs real estate office that specializes in
mid-century, architectural and other vacation properties" in the mecca of MCM. I try not to but I look at it almost every week. It also has a Cool Links tab with mostly local modern links.
ClassicAndModernProperties : My own website offering architectural and interesting properties mostly in the Lancaster and Berks County area of southeast and south central Pennsylvania.