Google has begun testing a potpourri of new features in search results, including enhanced page descriptions for select publishers, auto-correct for misspelled words, and the ability to jump to sub-sections.

The offerings are currently only available to a select pool of users.

One new feature is a kind of enhancement to Sitelinks, which displays navigational links to pages in a site from inside a search listing, enabling users to jump to a specific page. The new Pagelinks directs users to a specific area on the page itself.

Like Sitelinks, it is only available if the search listing is in the No. 1 organic search position on the search results page.

Another is a slight shift in how Google currently handles misspelled search queries. Before, it Google prompted spelling-challenged searchers with a "Did you mean [auto-corrected suggestion]?", but only displayed results for the original, likely misspelled item. Now Google provides the top two results for the auto-corrected name, helping users get the results they wanted, faster.

In what Search Engine Land called the "most dramatic" of the changes, enhanced Google search includes flagged content for Yelp, Citysearch, CNET, TripAdvisor and Download.com. An detailed excerpt from a restaurant review, for example, might appear courtesy of CitySearch (image courtesy of Search Engine Land):

Curbing concerns that such partners may unfairly profit from their liaisons with Google, the search giant stated these changes are purely visual — that is, partners do not get a status boost in search results.

These changes represent a new twist in the ongoing battle of usefulness between search sites. In October, Yahoo also began implementing extra data from partner sites — including CitySearch, Zagat, LinkedIn and Yelp — within relevant results. And last May, Microsoft Live Search extended results descriptions and added more navigational links to major headings.