Based on the tags from this post.
simple clearing of floats
two r ecent examples showing how to clear floats without using extra structural markup. [...]
how to display UL elements as a flat comma-separated list, by Anne van Kesteren. [...]
Internet Search Engines' Response to Metadata Dublin Core Implementation
Here's a paper examing the use of Dublin Core metadata in web pages as a tool to aid search engine optimisation. [...]