Here’s another important reason why academics should publish in open access titles: self interest – Walled Culture

"What this means in practice is that for the general public open access articles are even more beneficial than those published in traditional titles, since they frequently turn up as Wikipedia sources that can be consulted directly. They are also advantageous for the researchers who write them, since their work is more likely to be cited on the widely-read and influential Wikipedia than if the papers were not open access. As the research notes, this effect is even more pronounced for “articles with low citation counts” – basically, academic work that may be important but is rather obscure. This new paper provides yet another compelling reason why researchers should be publishing their work as open access as a matter of course: out of pure self interest."