Never mind apps, there really is a blog for everything. I just stumbled upon Bookshelf, a blog dedicated to interesting you-know-whats. Some of 'em you've seen before but many you haven't; and with archives stretching back several years, you'll have plenty of browsing ahead of you. I know it's not Friday yet, but treat yourself and steal some time when the boss-man ain't looking.
By the by, the Library concept above is from Coroflot's own Guy Eddington.