In a clean-up of its services, Yahoo! is about to remove a number of “underperforming” websites, including a few very well known brands.

Those of us who have been involved in search engine marketing for years will remember when Altavista was the Google of its day. Anyone involved in social media marketing will undoubtedly have spent time on the bookmarking website, Delicious.

In addition to these two sites, AlltheWeb (another search site), Babelfish (a translation service), Buzz (a news aggregation site) and MyBlogLog (a social media network, similar to Facebook) are all also likely to be taken off the web.

For the sake of posterity, here’s a screenshot of Delicious:

 

A Yahoo! spokeswoman said “Part of our organizational streamlining involves cutting our investment in underperforming or off-strategy products to put better focus on our core strengths and fund new innovation in the next year and beyond...We continuously evaluate and prioritize our portfolio of products and services, and do plan to shut down some products in the coming months...We will communicate specific plans when appropriate."

The company is also planning on cutting its workforce by 4%, which equates to about 600 jobs.

If your website receives traffic or has links pointing to it from any of the Yahoo! properties that are going to disappear then put measures in place to limit the impact. Start taking advantage of other social media, bookmarking and blog sites ASAP, to strengthen your link profile and the number of referring sites.