Suggesting a tag for content

1. A method performed by one or more processing devices comprising:

receiving, from a member of a social network, an entry in a display field along with an indication that the entry is for a post;

after receiving the entry and the indication, identifying content by performing a search using a search query comprising at least one keyword included in the entry and information about the member of the social network, the information comprising social connections of the member;

determining relevance scores for the content identified, a relevance score comprising a measure of how closely content matches the search query;

obtaining tags corresponding to identified content having relevance scores that indicate greater relevance to the search query than other content;

ranking the tags to produce ranked tags based at least on some of the information about the member of the social network;

outputting the ranked tags as suggestions to include with the display field upon selection; and

augmenting the entry by associating, with the entry, a tag selected for display in the display field.

2. The method of claim 1 , wherein the selected tag categorizes the entry by associating the entry with a discussion topic corresponding to the selected tag.

3. The method of claim 1 , wherein the member has social connections to others on and/or off of the social network.

4. The method of claim 1 , wherein the information comprises a geographic location of the member.

5. The method of claim 1 , wherein the information comprises a geographic proximity of the member to other members of the social network.

6. The method of claim 1 , wherein the information comprises a language of the member.

7. The method of claim 1 , wherein the information comprises content entries received from the member over a course of time.

8. The method of claim 1 , wherein the information comprises tags of discussion topics that the member has selected over a course of time.

9. The method of claim 1 , wherein the information comprises subject matter of content that the member has accessed over a course of time.

10. The method of claim 1 , wherein the information comprises a profile of the member.

11. The method of claim 1 , wherein identifying the content comprises determining, for at least some of the content, a probability that the at least one keyword included in the entry corresponds to the content.

12. The method of claim 11 , wherein the tags are ranked in accordance with respective probabilities of corresponding content and also based on the information associated with the member; and

wherein selected tags are output in order of rank.

13. The method of claim 1 , wherein the tags are obtained based also on a frequency of appearance of the tags on the social network.

14. The method of claim 1 , wherein the tags are obtained based also on times corresponding to when the tags were created on the social network.

15. One or more non-transitory machine-readable media storing instructions that are executable by one or more processing devices to perform operations comprising:

receiving, from a member of a social network, an entry in a display field along with an indication that the entry is for a post;

after receiving the entry and the indication, identifying content by performing a search using a search query comprising at least one keyword included in the entry and information about the member of the social network, the information comprising social connections of the member;

determining relevance scores for the content identified, a relevance score comprising a measure of how closely content matches the search query;

obtaining tags corresponding to identified content having relevance scores that indicate greater relevance to the search query than other content;

ranking the tags to produce ranked tags based at least on some of the information about the member of the social network;

outputting the ranked tags as suggestions to include with the display field upon selection; and

augmenting the entry by associating, with the entry, a tag selected for display in the display field.

16. A computer system comprising:

one or more processing devices; and

one or more machine-readable hardware storage devices storing instructions that are executable by the one or more processing devices to perform operations comprising:

receiving, from a member of a social network, an entry in a display field along with an indication that the entry is for a post;

after receiving the entry and the indication, identifying content by performing a search using a search query comprising at least one keyword included in the entry and information about the member of the social network, the information comprising social connections of the member;

determining relevance scores for the content identified, a relevance score comprising a measure of how closely content matches the search query;

obtaining tags corresponding to identified content having relevance scores that indicate greater relevance to the search query than other content;

ranking the tags to produce ranked tags based at least on some of the information about the member of the social network;

outputting the ranked tags as suggestions to include with the display field upon selection; and

augmenting the entry by associating, with the entry, a tag selected for display in the display field.