"W" (who is a reader I have only just met, waving), has pointed out a neat site called LibraryThing.
It allows you to catalogue your library online, has a blog associated with it, and looks fun for the serious library owner. I'm still trying to work it out - I already have a few hundred of my non-craft books catalogued in a program on my computer, so not sure that I would be changing over, but it has interesting possibilities. Thanks "W".
And it is not quite the same as a cosy little chat amongst stitchers about favourite stitching books on Flickr - which is also fun. So I am off to look at my shelves, pick out the fifth book from the left in the craft section, and have a look at it. Unless it is one posted already in My Library set. Then I will go for the sixth. :) Back soon.