How do you export what to your website?
You can export as jpeg (sRGB) if you have your own web site set up and managed, you can use the Web module to create a web site (you can upload automatically from there - see the help or just wing it from "Upload..." button), you can publish directly to Facebook, Flickr and loads more.
Or you can ask a more specific question!
Try the Help menu > creating web photo galleries. It's any easy task.