Java books are still useful if they were considered good while current. Many good programming books remain useful even as the language evolves and the syntax diverges. Dreamweaver 4 can be useful to someone to understand the concepts of design. Browsers will still mostly happily render old code. I'd give them to a library if they are willing to accept them or list them on a site like Craigslist or Facebook Marketplace for your locale.

C, C++, Linux, Unix, and Cisco books are eternal. They may not teach you secure ways of doing things, but they are eternal. NetWare may be obsolete. ;)