2. The method of claim 1 , further comprising: receiving an indication of a request to provide a user with one or more suggestions; and identifying the one or more social content items based on one or more contacts of the user.
2. The method of claim 1 , further comprising: receiving an indication of a request to provide a user with one or more suggestions; and identifying the one or more social content items based on one or more contacts of the user. 3. The method of claim 2 , wherein the one or more significance criteria includes one or more of popularity of the n-grams, volume of social activity performed with respect to the one or more social content items, a social affinity of the user and the one or more contacts, a level of interest of the user in content items relating to the n-grams, or relevance of the n-grams to user activity.