SparkFun PRT-09567 Breadboard Clear Self-Adhesive
This 30 column, 10 row transparent solderless breadboard has standard 0.1" spacing and the two sets of five rows is separated by about 0.3", perfect for straddling a DIP package over.
This board also has a self-adhesive on the back. The boards also have interlocking parts, so you can hook as many together as you'd like.
Dimensions: 3.29 x 2.15 x 0.33" (83.5 x 54.5 x 8.5mm)