Popular stencils
Generator-Elec
A collection of symbols I put together reworking an Onan generator wiring diagram
Juniper SA Series SSL-VPN
The complete Juniper SA series of devices
Bayes Elements
Mathematical elements for describing Bayes probabilities. Also includes stencils for sensors and platforms when using these elements for robotics or other applications.
REST Services
A simple stencil to aid in the documentation of REST based web services.
Hypermedia Icons
A set of icons for drawing hypermedia applications.
Name badge
A stencil for generating name badges or other badges of a similar style.
AMF Gateway Documentation
Stencil for describing the request and response expected in an AMF or other RPC/REST style exchange
Juniper SSG
Juniper SSG firewall devices. SSG5, SSG 20, SSG140, SSG500 and SSG500 PIMs.
Cisco CVD 2014 Data Center and Server Icons
Cisco released updated CVD Icons in many formats, but of course, no Omnigraffle stencil. These are built from the PNGs. http://www.cisco.com/c/en/us/solutions/enterprise/design-zone-smart-business-architecture/cvd.html This is the Data Center and Server Icons