Sigma-Aldrich: Analytical, Biology, Chemistry & Materials Science products and services. Sigma-Aldrich

GAF Roofing Shingles & Materials

Roofing shingles and materials, plus factory-certified roofers (including ratings from real homeowners!) from North America's largest roofing manufacturer. Residential and commercial roofing, shingles, slate, roof ventilation, roof underlayments, asphaltic and TPO roof membranes.

Homepage - Bayer

Bayer is a global enterprise with core competencies in the fields of health care, nutrition and high-tech materials. Read more about: Bayer Group, Bayer sites, research, products, sustainability

Art Gallery & Community - T-Shirts, Posters, Greeting Cards, Wall Art, Fine Art Prints, Calendars & More Redbubble

Online art community featuring wall art, design, photography and t-shirts by artists worldwide. Buy cool art & t-shirts or sell your art!

Art Supplies from Dick Blick Art Materials

Dick Blick Art Materials has served artists with discount art supplies since 1911. Blick is well known for our enormous selection, dependable savings, and fine customer service on thousands of in-stock art supplies.