You are not logged in.
IMAGES
If you're already using the recommended style "LeetScape", you've probably noticed it's currently using a fixed-width layout, therefore all larger images will be squashed (oh no!), but don't worry, with slightly modified LightBox technology they'll load perfectly, here's a little example (click the image below):
error: image http://s7.postimage.org/cr17z8qq3/3hu030.png cannot be loaded.
Fancy eh? Simple I know, and you've all probably seen it before, but it's simple and does the job.
YOUTUBE
It's also very easy to add a YouTube video, click the YouTube BBCode button when writing a topic or posting a reply then simply copy the URI in between the two YouTube brackets.
error: image http://s1.postimage.org/s3fv2tv0v/youtube_example.gif cannot be loaded.