If you stumble upon it randomly like this posting it may never end up being useful and you may never go back to it. But if you're looking particularly to get s

If you stumble upon it randomly like this posting it may never end up being useful and you may never go back to it. But if you're looking particularly to get started on a topic, or get some tips, it's very useful. The O'Reilly "recipe" books have been very useful to me over the years, and they're basically just a more formalized version of this sort of thing.