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Miski: A White Paper This document, which originally existed as a documentation web page for an unimplemented project on SourceForge, now only exists as a series of snapshots on Wayback. The document describes a messaging system with follower/following mechanics, very similar to that described in the independent claims of the patent. Note that Feb 2001 is ...


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This patent is an obvious application of the "publish-subscribe" pattern. An earlier implementation of this pattern was the usenet system in 1979 which allowed messages to be posted (published) to newsgroups without any predetermined recipient. Other users were able to follow (subscribe) to newsgroups so that the newsnet client software could track which ...


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Some of this patent's claims also hinge on the fact that a Tweet is processed and pushed out to multiple transports (email, SMS, web, IM...) and users may consume these messages with multiple clients. At least one open-source system had these capabilities for almost a decade prior: XMPP, the Extensible Messaging and Presence Protocol, also known as "Jabber"...


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How about US Patent No. 6,389,455 (1998 filing)? Col. 8:4 references corporate accounts where the regional manager can be on the receiving end of sale rep communications. All contacts go through a dotbounce hub so the message is not sent to anyone. Rules of the forward impact formatting. EDIT For those that did not read the '009 patent - "Disclosed is ...


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Interesting reference, but I think one main difference is that Miski is based on users subscribing to arbitrary subjects, whereas the Twitter patent is (partly) based on users subscribing to other users. Now this might seem like an obvious variation ("let subject = user id"), but: it changes the functionality in subtle but significant ways (for instance, ...


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