16. A method according to claim 11 , further comprising: extracting tokens from the information feed; generating a query using the extracted tokens and applying the query to a set of documents; identifying those documents in the set that match the query as search results; identifying salient terms associated with each of the search results and applying a threshold to the identified salient terms; and selecting the salient terms that satisfy the threshold as topics for the information feed.
17. A method according to claim 16 , further comprising: applying a part-of-speech tagger to the information feed to identify the tokens.