You're supposed to learn something new every day, correct? Might as well share it and make us all a little wiser.
If you have some kind of photograph to go along with your discovery, feel free to post it. However, please either post a thumbnail linked to the larger picture, or place the image behind an lj-cut. Similarly, if you wish to post an article that pertains to what you learned and want to post the full text (which can happen, if you want to post an article that's on a website that requires registration) please also put that behind an lj-cut.
Please do not post the results from online quizzes, no matter how much you feel you may have learned about yourself from them.