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Some years ago our own Reading Fox most felicitously introduced us to LibraryThing. Many Associates catalogued their personal libraries there as a direct result. Now is the perfect time to update our accounts -- or open a FREE account if one has never had one. No strings attached! One cannot speak highly enough of this site:
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I like LibraryThing, too! It's easy for me to keep track of my books when I want to buy new ones.
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I will have to see if my account is still there ....
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Mine was there, but I've been using Goodreads. Fortunately, LibraryThing let me import all my lists.