A form of malicious code that displays unsolicited advertising on your computer.
Computer software that attempts to block malicious programs/code/software (called viruses or malware) from harming your computer.
A diary or personal journal kept on a Web site, usually updated frequently, that might be private or might be intended for public viewing.
Computer programs that automatically perform a repetitive task, such as searching through Web sites or indexing information.
A list of friends you interact with online through various media such as instant messaging.
When two (or more) Internet users search the Web together, both users see the search results simultaneously.