My Favourites
- Hard Sums
- HyperMath (http://hyperphysics.phy-astr.gsu.edu/hbase/hmat.html)
- S.O.S. Mathematics (http://www.sosmath.com/home.html)
- Mathworld (http://mathworld.wolfram.com/)
- MathPages (http://www.mathpages.com/home/index.htm)
- Lots of fairly short but well written pages about a diverse range of topics from maths and physics
- Virtual Laboratories in Probability and Statistics (http://www.math.uah.edu/stat/)
- The Golden section ratio: Phi (http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/phi.html)
- The Golden Ratio is 1.61803398874989484820458683436563811772030917980576 (give or take).
- The University of Toronto Mathematics Network (http://www.math.toronto.edu/mathnet/questionCorner/qc.html)
- A place for high-school students and others to ask questions about mathematical topics and receive accurate and informative answers
- www.mathwords.com (http://www.mathwords.com/)
- Designed for math students who need an easy-to-use, easy-to-understand math resource all in one place. It is a comprehensive listing of formulas and definitions from beginning algebra to calculus. The explanations are readable for average math students, and over a thousand illustrations and examples are provided
- Software
- Octave (http://www.octave.org)
- GNU Octave is a high-level language, primarily intended for numerical computations. It is basically a Matlab clone
- Scilab (http://scilabsoft.inria.fr/)
- Statistics
- Probability
- Failure Rates, MTBFs, and All That (http://www.mathpages.com/home/kmath498.htm)
- This is a really good explanation of the Probability Density Function, Cumulative Probability Distribution (a.k.a. Probability Mass Function) and how they are related. Also a good explanation of the Exponential probability distribution and what is mean't by the term "memoryless"
- Queueing Systems
- Science
- badscience.net (http://www.badscience.net/)
- Physics
- Chemistry
- Fun Experiments
- Networking
- Dr. Peter J. Welcher's Articles and Papers (http://www.netcraftsmen.net/welcher/papers/index.htm)
- A bunch of well-written articles covering a wide range of topics
- Multicast
- Cisco
- Command Lookup tool (http://www.cisco.com/cgi-bin/Support/Cmdlookup/home.pl)
- Cisco IOS Software Collateral Library (http://www.cisco.com/en/US/partner/products/sw/iosswrel/ios_software_collateral_library_listing.html)
- Lots of very good technical articles
- Cisco Technology Information Page (http://www.cisco.com/en/US/partner/tech/tk543/tk759/tsd_technology_support_technology_information.html)
- IP Routing
- BGP Case Studies (http://www.cisco.com/warp/public/459/bgp-toc.html)
- Not really a very descriptive title...this document is a pretty good overall introduction to BGP
- BGP Technical Tips (http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Internetworking:BGP)
- OSPF Design Guide (http://www.cisco.com/en/US/partner/tech/tk365/technologies_white_paper09186a0080094e9e.shtml)
- VoIP/IP Telephony
- QoS
- Audio/Video
- Network Emulators
- Linux Network Emulator (http://linux-net.osdl.org/index.php/Netem)
- (http://www.smyles.plus.com/phpnetemgui/)
- A GUI interface to NetEm
- NISTnet (http://snad.ncsl.nist.gov/itg/nistnet)
- dummynet (http://info.iet.unipi.it/~luigi/ip_dummynet/)
- ISDN
- Security
- Wireless LAN/WiFi
- Wireless.gumph.org (http://wireless.gumph.org/)
- Some generally interesting and well-written articles. In particular, see the "Long Range How-To" article
- Power Calculations
- Commercial Antennae
- Homebrew Antennae
- Software
- Kismet (http://www.kismetwireless.net/)
- VoIP/IP Telephony
- Internet Workings
- Connected: An Internet Encyclopedia (http://www.freesoft.org/CIE/index.htm)
- Renesys Technical Information (http://www.renesys.com/tech/)
- Interesting stuff about BGP on the Internet. Stuff about routing instability during worm outbreaks and major disasters is particularly interesting
- University of Oregon Route Views Project (http://www.routeviews.org/)
- Current and historical BGP information from lots of key points on the Internet. They maintain downloadable BGP tables going back a few years
- ISP Technical Information
- Telecommunications Infrastructure
- Irish
- Regional Broadband Programme (http://www.dcmnr.gov.ie/Communications/Development+Division/Regional+Broadband+Programme/Regional+Broadband+Programme.htm)
- Web Development
- E-Mail
- PCs
- The Windows Keyboard (http://www.seoconsultants.com/windows/keyboard/)
- A list of little-known but handy key combinations
- PCStats.com (http://www.pcstats.com/)
- Hardware reviews and lots of well-written techie articles
- Disk Cloning
- Windows Utilities
- Linux
- Microsoft
- PKI
- Flight & Aircraft
- TV and Satellite
- Electronics
- Educational
- Projects
- PIC Microcontrollers
- For Kids (of all ages !)
- On-Line Shopping
- Gadgets
- PC Bits and Pieces
- Games
- Classic Arcade Emulators and Games
- On-Line
- Music
- Guitar
- GuitarNoise.com (http://www.guitarnoise.com/guitar.php)
- Lots of excellent on-line lessons
- Guitar Lesson World (http://www.personal.psu.edu/users/f/p/fpm108/glw/)
- The Guitar Shred Show (http://www.guitarshredshow.com/)
- An incredible Flash site teaching electric guitar techniques
- Sheet Music
- Blank
- http://www.zzounds.com/edu--printablestaffpaper (http://www.zzounds.com/edu--printablestaffpaper)
- Links to a variety of other sites with all sorts of staff paper
- PDF Pad Staff Paper (http://www.pdfpad.com/staffpaper/)
- "No nonesense" site which lets you generate just about any kind of paper very easily
- BlankSheetMusic.net (http://www.blanksheetmusic.net/)
- Cool Flash site that lets you colour, scale, rotate etc. your sheets to your wishes
- dolmetsch online (http://www.dolmetsch.com/manuscriptpaper.htm)
- I-Love-Guitar.com (http://www.i-love-guitar.com/free-guitar-tab.html)
- Nice tab paper with string numbers written on the first line (handy when starting out)
- Piano
- Guitar Tab
- Digital Photography
- Camera Reviews
- Sensor cleaning - Instructions & Products
- Understanding Lenses, Focal Lengths etc.
- Photography by Kevin Wiley - Educational Information (http://www.kevinwilley.com/k30_education.htm)
- Very good explanation of how/why using a long lens does not produce the same result as using a short lens and movong closer to the thing you are photographing
- Lens Tutorial from photo.net (http://www.photo.net/photo/optics/lensTutorial)
- Fairly technical...includes all of the useful maths. The whole www.photo.net site is pretty a pretty good resource about photography in general (both the technical aspects and the more artistic aspects)
- Hacks
- Programming
- BrainJar.com (http://www.brainjar.com)
- General programming examples. Excellent Java games (Asteroids, Tail Gunner and Snake pit) under "Java"
- C/C++
- Java
- Game Development
- Reference
- Time
- Graphics
- Inkscape (http://inkscape.org/index.php)
- Opensource vector graphics editor
- Smartdraw (http://www.smartdraw.com)
- Similar to Visio
- Welding
- Bicycles
- Online Learning
- Psychology
- Model Helicopters
- Unclassified
- ZYTRAX.COM Info (http://www.zytrax.com/tech/)
- A collection of information about a wide variety of techie stuff
- Usenet Archives (http://yarchive.net/home.html)
- A collection of useful USENET postings collected and filtered by Norman Yarvin, covering a diverse range of topics from science, engineering and technology in general