finnlabs developed another set of FMC Block Diagram stencils as the Fundamental Modeling Concepts (FMC) constitutes a solid base for every day communication, no matter whether within the engineering team or with clients or partners.
Network Server icons
A few connectors missing from Omnigroup's great Home Theater Connectors stencil.
Here are the Cisco ASA 5500 and 5800 series stencils. Haven't got around doing the modules yet.
Modular and normal L3/L2 Nortel Network switches
User Interface Elements for XING.com - Grids for Header and Home-View - Grids and Elements for boxed elements like "My Contacts"
Visualize the value streams in your supply chain or material flows.
HP 7102dl and 7203dl series routers with some modules
UPDATED FOR NEW (Summer 2009) Final Cut Studio * (Audio MIDI Set up added 8/31/09)* Most of the major icons for the Apple Pro Apps, including Aperture, Logic, & Mainstage. Handy for designing workflows. Now with Xsan icons as well.