Abstract: Relevance based dynamic navigation is provided. A communication application searches communications to identify hashtags associated with the communications. A relevance score is computed for each hashtag based on a relevance criteria associated with the hashtags. The hashtags are ranked based on the relevance score. Next, the ranked hashtags are presented in a navigation user interface.

Abstract: Relevance based dynamic hashtag navigation is provided. A communication application searches communications to identify hashtags associated with the communications. A relevance score is computed for each hashtag based on a relevance criteria associated with the hashtags. The hashtags are ranked based on the relevance score. Next, the ranked hashtags are presented in a navigation user interface.

Abstract: Techniques for notification and synchronization are described. Some techniques may comprise receiving a synchronization request and establishing an updating session connection. The updating session may be based on a delay interval parameter specifying a length of a delay interval and a collection parameter specifying one or more collections to be synchronized. When data for the collections to be synchronized is unchanged, the updating session may be maintained, and the synchronization request may be kept pending. Upon receiving a notification from a data store during the delay interval that updated data is available for one or more of the collections to be synchronized, a synchronization session connection is established with the data store to retrieve the updated data. A notification and synchronization message comprising the updated data may be sent as a response to the pending synchronization request. Other embodiments are described and claimed.

Abstract: An apparatus and method are directed to maintaining fidelity of a data property during data synchronization. A data property may include virtually any attribute that characterizes an aspect of an application's data. An application may include an email application, contact, calendar, scheduling application, and the like. Data properties may also characterize aspects of a non-application, such as a client's hardware device. Data fidelity is maintained through a concept called herein as property ghosting. Property ghosting leaves selected data properties unchanged on a server when the client device does not send the data property back to the server during data synchronization.