The prevailing opinions in the past have been that it's fine to post links to your own material, provided it's relevant, and you don't swamp the site by posting lots in quick succession. If it's relevant, interesting, insightful, and/or useful, then it doesn't matter if you wrote it, or you found it somewhere else.
Try posting one and seeing if you get any response.
Yes, you can post your own stuff here. I have done so, with mixed results. It might help if you participate in the community a bit first. I don't mean you have to in order to be allowed to post, I am just saying that participation can help you get a better feel for what flies here.
Even if you do get that feel, there is a lot of random chance involved in what does well. I have written some on my blog about that if you care to read it.
Try posting one and seeing if you get any response.