For folks who prefer to get their retail therapy in digital form, Google Catalogs is a godsend. In case you forgot, it's an aggregation portal with digital catalogs from myriad merchants that lets you browse retailer wares without killing trees and now it's available on the web. When Catalogs first debuted, it was only available as a tablet app for iPad or Android. The new web-based catalog browser, however, lets users peruse ware