Buried beneath the news of the Nexus One (AKA the Google phone) launch last week is Google’s roll-out of real-time search — Twitter tweets and blog posts are now indexed by the search engine within minutes or seconds (instead of days). This is going to have big implications for search marketers.

(We can only hope that this doesn’t mark the beginning of a new era of Twitter spam, designed merely to drive higher search rankings rather than to add real value to the online conversation.)

Here, Google Fellow Amit Singhal explains how tweets and other real-time Web information is captured by Google search.

Amit Singhal explains real-time search

(via Technology Review)