Fortunately there are still sites like FoaFSpace and the FoaF Explorer linked from my name in the About block.
One of the things I'd like to play with on this site is generating the buttons and friend links down the right side from my FoaF file. This is what FoaF Explorer does. It involved me learning about XSLT to convert XML/RDF to HTML. I've had to learn a bit about XML for work lately, but it's useful stuff generally for understanding Semantic Web concepts.