Featuring Metaverse Ink Search 1.0
Metaverse Ink Search, formerly called SLBrowser, is the first and only independent search engine for virtual worlds, searching over 2 million products in tens of thousand virtual places. Ranking of search results is done using heuristics specifically devised for these environments.

Use it Inworld
Point your embedded browser (F1) to http://metaverseink.com.

Additionally, you can configure the "Search" button to use OpenSearch. OpenSearch is Metaverse Ink's initiative to make search in virtual world viewers more like search in modern web browsers, namely user-configurable. Use it with your SL™ viewer, and you will be able to access two virtual world search engines from the same search button, The Ink's and Linden Lab® search.

Viewer Integration
The realXtend viewer already supports OpenSearch natively. Download reXviewer.
The standard SL™ viewer can be configured to integrate with OpenSearch: see how.