User experience guidelines for IBM Lotus rich client applications and plug-ins

This white paper describes user-interface design and interaction guidelines for designers and developers who are building IBM® Lotus® Notes® applications, IBM Lotus Sametime® V7.5 or later plug-ins, IBM Lotus Symphony� plug-ins, IBM Lotus Expeditor plug-ins, or composite applications (assembling any mixture of plug-ins, Lotus Notes applications, and components built with IBM Lotus Component Designer).

[via Mary Beth Raven]