Depends on what you mean by "scrapbook" and what you'd like it to represent for you. I've got a variety of stuff that I call scrapbooks and lots of different materials that I use for each:
- For my more traditional scrapbooks that are safe for family consumption, I use the kind of materials that you can find at a place like JoAnn Fabric and Crafts, Michael's, or AC Moore. These usually include acid-free paper, cardstock, glue and other adhesives; stuff I find in the embellishment sections like stickers; good quality pens and markers. I don't go nuts with the ribbons and scissors, but that's a personal preference. I've made quite a few that I share with my family that usually chronicle events like holidays, trips, and other stuff that involve lots of picture taking ("Hey, Grandma, check out these pictures and postcards I collected from my trip to Dollywood!"). While I find some of the stuff a little too cutesy for my personal liking, I find websites like
http://www.creatingkeepsakes.com,
http://www.heidiswapp.com, and
http://scrapbooking.about.com useful for ideas. Also,
http://www.stickersgalore.com has a pretty good selection of stickers with reasonable shipping and great sales -- I bought a ton of alphabet stickers there. I like 12"x12" post bound albums the best for these because of the variety you can get in layouts.
- For the themed scrapbooks that I've made for my fiance, I put stuff that I've collected like movie ticket stubs for a preview screening of "Serenity," notes and cartoons that we drew for each other, and assorted pictures. For these, I end up using a lot of the same types of materials as my traditional scrapbooks. I've used 12"x12" post bound albums and even traditional picture albums for these.
- For my art journal / visual diary scrapbooks that are just for me, I have epherma, quotes, and observations that I make from day to day. Since I use more collage techniques with these, so I end up using quite a bit of acrylic paint after priming the pages with gesso. I also like using a lot of rubber stamp work with these, and I use blank sketchbooks or homemade books for these. I'm inspired a lot by Sabrina Ward Harrison, SARK, and Teesha Moore's work.
I've got tons of sites that I've bookmarked, so let me know what techniques you'd be interested in! Good luck!