Abstract: Searches can be performed by attaching social contact metadata to a query where the metadata may be related to a degree of separation, chat room participation and geographical information related to an owner's contacts. Searches can then be executed by generalized search engines based at least in part on the metadata. The metadata may include contact identifiers that are unique across one or more social networks, and may include contacts for individual people as well as groups or other affiliations.

Abstract: Searches can be performed within a social network by attaching social contact metadata to data. A webpage or other data that is indexed may have metadata that includes an owner's first degree contacts. Searches can then be executed within the first degree contacts to return data within a social network, and the searches may be performed by generalized search engines. The metadata may include contact identifiers that are unique across one or more social networks, and may include contacts for individual people as well as groups or other affiliations.

Abstract: A system and method are incorporated within a search engine for preventing proliferation of malicious searchable content. The system includes a detection mechanism for detecting malicious searchable content within searchable content traversed by a web crawler. The system additionally includes a presentation mechanism for handling the detected malicious searchable content upon determination that the malicious searchable content is included in search results provided by the search engine. The presentation mechanism handles the detected malicious searchable content in order to prevent proliferation of the malicious searchable content to a receiver of the search results.