Bookgasm is one of my favourite book blogs, if not THE favourite. They have a regular feature by Bruce Grossman called, rather luridly, Bullets, Broads, Blackmail & Bombs which gives brief reviews and descriptions of tons of cheesy old paperback originals: mostly adventure, noir, hardboiled, detective. A lot of the stuff he talks about is pretty bad, but Grossman also reviews a lot of classic pulp by Donald Westlake, John D. Macdonald, Donald Hamilton, Eric Ambler and tons of others. Even when the reading is grim, Grossman keeps his commentary lively and entertaining.
Some recent installments include: