I love Thousands of Bolts' website. The fabrics are arranged by colors and then you can search by theme. They also have a color matching feature. I bought about 75 shades of blue off the website last year for a several blue quilts. Many of them were FQ. I was able to view swatches of my choices in the shopping cart so that I had a balanced selection of blues.
As long as prints aren't too juvenile, I mainly buy by color and density of prints, so I'm not interested in finding the most current of designs. When I have made baby quilts, I'll buy the larger, more modern prints elsewhere, but buy the smaller prints or solids from Thousands of Bolts.