You can customize Twitter profile background by selecting a well designed image that fits in your Twitter profile page and that best suits you. Have you been wanting a new Twitter theme design? Colourlovers has brought forth a Twitter theme design tool called Themeleon for the upcoming New Twitter.
A great way to provide information to people is through videos. If you are a blogger, you must have embedded videos from Youtube, Revver, Vimeo etc. to your posts to create much interactive articles. Well the most ubiquitously seen embedded videos in most of the websites and blogs are the ones from Youtube. But the embed code provided by Youtube gives a very general video player which may or may not match the template of your blog.