Ois: You might have better luck starting up a blog, focused on retro (or your choice of word) games. Post about GOG releases when they happen.
A lot of blogging style CMS allow multiple 'publishers/authors'. If you find people willing to create content, you can have different sections/views as your readers (and writers) grow.
Once you have a target captive audience (not already here), a newsletter would work well.
OK, I've decided to go the blog route. A magazine-themed blog would emulate a newsletter-style newsletter (redundant, yes). If you wanna be a contributor, post here and let me know.