Today, the Internet Archive announces the Historical Software Archive, a collection of prominent and historically notable pieces of software, able to be run immediately in your browser. They range from pioneering applications to obscure forgotten utilities, and from peak-of-perfection designs to industry-crashing classics. (http://blog.archive.org/2013/10/25/microcomputer-software-lives-again-this-time-in-your-browser/)
And the direct link to the archive: https://archive.org/details/historicalsoftware