Depending upon the condition and titles, software of that vintage will have some value. Probably best to try eBay. People around here want everything for free.

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The stuff in the picture is only the pack that came with a Mac Plus when new, I don't think it's worth that much, I got a set (with a Plus) off Freecycle once (though my Apple stickers are the slightly later variety with Apple Garamond rather than the old font shown there). If you've really got something signed by Bill Gates then that would be very collectable though, it would be interesting to see it if so.