Findings:

• wave motion engine
• perpetual motion
• Perpetual Motion Machine
• ballast engine
• search engine
• game engine
• The Difference Engine
• analytical engine
• engine
• steam engine
• Velocity Engine
• Twin Ion Engine
• ion engine
• Wankel rotary engine
• Air engine
• Water engine
• PC Engine
• horizontally opposed engine
• internal combustion engine
• PC Engine LT
• Internal combustion engine valve actuation methods
• metasearch engine
• Dark Engine
• Cox engine
• two-stroke engine
• Teach Yourself Scheme: 15 Engines
• Teach Yourself Scheme: 15.2 Flat engines
• Teach Yourself Scheme: 15.3 Nestable engines
• Internal engine parts are beautiful
• Emotion Engine
• Everything as your preferred search engine
• heat engine
• graphics engine
• engine block
• engine compartment
• Ivor the engine
• GE Aircraft Engines
• It is a new search engine, wanna try?
• fire engine red
• The Little Engine that Could
• Auctioneer (Another Engine)
• Thomas the Tank Engine
• Continental Class installations: Main engines
• Warp engines
• external combustion engine
• The Chaos Engine
• Continental Class installations: Rudder engines
• pulsejet engine
• Why are car engines so HUGE in the US?
• Why don't search engines make use of NLP?
• Hydrogen engine
• inference engine
• check engine
• Hallucination Engine
• diesel engine
• Search Engine Mechanics
• Aerospike engine
• Cool The Engines
• Glow engine
• XPM-based sprite engine
• A nice warm engine block
• You're never far from the sound of an engine
• Unreal Engine
• 3D engine fog
• Loading the ELIZA engine built into emacs
• Stirling engine
• Engine movie
• Search engine as spell checker
• Engine No. 9
• S2 Engine
• Gentlemen, Start Your Engines
• This Strange Engine
• The Cobralingus Engine
• Jacobs Engine Brake
• Szilard Engine
• service engine soon
• PC Engine CD-ROM²
• PC Engine CoreGrafx
• PC Engine CoreGrafx II
• PC Engine Duo
• PC Engine Duo-R
• PC Engine Duo-RX
• PC Engine GT
• PC Engine Interface Unit
• PC Engine Shuttle
• PC Engine Super CD-ROM²
• PC Engine SuperGrafx
• PC Engine GT TV Tuner
• PC Engine Infrared Control Pad
• PC Engine Karaoke
• PC Engine LT Super CD-ROM² Adapter
• PC Engine Mouse
• PC Engine Shuttle Backup Unit
• PC Engine Virtual Cushion
• TurboGrafx-16
• Catastrophic engine failure
• fire engine
• engine management software
• Jet engine
• transverse-mount engine
• Rocket Engine Perfomance Measurements
• Cooking with your car engine
• pancake engine
• Node your Code: The Everything Engine in Action
• Go You Big Red Fire Engine
• Engine Braking
• boxer engine
• Creatures Evolution Engine
• Radial engine
• interference engine
• Newcomen Engine
• tank engine
• Borland Database Engine
• blueprinted engine
• engine balancing
• Infinity Engine
• Spoon engine
• Engine balance
• engine capacity
• triple expansion steam engine
• binary engine
• Maintaining your car engine
• Engine head
• engine cooling systems
• Automobile engine troubleshooting
• four stroke engine
• engine problem diagnosis
• engine tuning
• Mortal Engines
• Vauxhall/Opel engine identification conventions
• vortex engine
• radiatively cooled engine
• ablatively cooled engine
• KA24DE Engine
• Changing the rear spark plugs on a transverse GM V6 engine
• Redstone rocket engine
• Toyota engine codes
• Search engine optimization
• Engine Order Telegraph
• siege engine
• steam engine time
• engine knock
• farm engine
• Stroudley's Improved Engine Green
• The Doom III rendering engine
• 3D engine
• A cute lady mechanic who fixed his engine and damn near broke his heart
• electric engines
• longitudinal engine
• transverse engine
• Chevy small block engine
• longitudinal-mount engine
• Engine (user)
• Who libraries the librarians?: Search Engines and the Semantic Web
• A practical methodology for tag based search engines
• pony engine
• Engine City
• Bogie engine
• Otto engine
• Gas engine
• Gasolene, engine
• Radiant engine
• Tandem engine
• Trunk engine
• Semiradial engine
• Rand Cam Engine
• against the humming of diesel engines
• Soul Engine
• insult to injury engine
• Imagination Engines
• Cell Broadband Engine
• Everything Engine
• h20 fuel combustion engines
• Figment Engine (user)
• My heart is nothing more than an engine forged from the remnants of a dead star
• Optimizing Everything2 for search engines
• drug discovery engines
• How to build a Showroom Stock Racing Engine
• Cheat Engine
• Source Engine
• The most engine failures in one flight
• Attempting to harness the engine of our own destruction, only humans are so foolish.
• Space Shuttle Main Engine
• lean burn engine
• Engine Kitty

If you Log in you could create a "perpetual motion engine" node. If you don't already have an account, you can register here.