The most recent news coming from the Yahoo Search Engine is that they have added a new tag that can be used to omit areas of the page that are not relevant for the search engines.

What this is trying to do is mark areas of the site that are meant for visitors only and stop the Yahoo Crawler from indexing those areas of the page. This would mean that the crawler is indexing areas of the site that the webmaster wants to direct them too. It can also prevent the description displayed in the SERPs being from an irrelevant section of the page

I'm uncertain of the merits of this in the long term. Unless this gets cross search engine support, I am unsure whether or not it will be worth using this tag, as at present the traffic levels from Yahoo are mostly not particularly high.

If it does gain cross engine support though there is every chance this will become a very useful feature to add to the HTML of a page, one where we can mark out any irrelevant (for Search Engines) areas and allow the search engines to concentrate on the areas we want them too.