Creating Keepsakes
The leading scrapbooking magazine. Each year, they run two of the biggest scrapbooking contests of the year – the Hall of Fame (HOF) and the Scrapbooker of the Year (SOY). They also host Creating Keepsakes University (CKU), a convention where you take classes with scrapbooking "rock stars" like Ali Edwards and Tim Holtz, and get tons of free scrapbooking supplies.

Scrapbooks Etc.
Beautiful magazine that comes with a pull-out section of page sketches. They also have free page sketches available on their site.

Scrapbook Trends
Gorgeous magazine with very few ads and pages and pages of beautifully photographed layouts, cards, and mini-books.