Augmented and cross-service tagging

A system comprising:

• one or more computers running a plurality of applications;
• a first computer of the one or more computers running a cross-service tagging mashup application, the cross-service tagging mashup application connected to the plurality of applications;
• a relationship discovery component of the first computer for discovering relationships between entities within individual applications and between entities across multiple applications;
• a tag initiation component of the first computer for initiating tags;
• and
• a tag propagation component of the first computer for propagating tags across multiple applications based on relationships discovered by said relationship discovery component, the tag propagation component configured to propagate tags from at least one of an email application, a blogging application and a website-bookmarking application to a different one of the email application, the blogging application and the website-bookmarking application such that initiating tags to associated the tags with the entities in one of the multiple applications results in displaying the tags together with the entities in the other of the multiple applications.

A method comprising:

• receiving, by a computer system running a tagging mashup application, a new email message sent to a user using an email application;
• comparing said new email message with previous emails sent to said user;
• generating, by the computer system, a keyword set of related words, including words found in both said new and previous email messages;
• presenting, by the computer system, said keyword set to said user to generate a tag;
• and
• propagating, by the computer system, said tag across multiple applications by associating said tag with identified entities in applications other than the email application such that displaying one of the identified entities in the applications other than the email application results in displaying the tag together with the one of the identified entities, the identified entities corresponding to entities pointed to by content in the new email message.

A computer program product for cross-service tagging, said computer program product comprising:

• a non-transitory computer readable storage medium having computer readable program code embodied therewith, said computer readable program code comprising:
• computer readable program code configured to:
• create connections to multiple applications, each application having multiple entities;
• determine relationships between said entities within a single application and between entities across multiple applications, the multiple applications including at least an email application, a blogging application and a website-bookmarking application;
• associate a tag with a selected one of said entities in a first one of said multiple applications;
• identify entities in other applications besides said first application that are related to said selected entity, based on said determined relationships;
• and
• propagate said tag across multiple applications by associating said tag with said identified entities in said other applications, such that displaying said identified entities in said other applications includes displaying said tag together with said identified entities in said other applications.