| Decibel_Dungeon Beginners guide offers an introduction to DIY hi-fi. Includes articles on building, modifying and buying components. |
| DIY_Hifi,_Audio_and_ELectronics Includes datasheets and reference articles on audio and headphone amplifiers, preamplifiers, head and phono amps. |
| diyAudio_com Web community dedicated to DIY audio projects and discussion. |
| Elliott_Sound_Products_-_The_Audio_Pages Information for audio DIY hobbyists. Articles, construction projects, links, sources. |
| Gary\'s_Vacuum_Tube_Page Vacuum tubes for antique radios and tube audio gear. |
| Guitar_Electronics_Projects Self-built guitar tub amplifiers. Showcases design and stories beyond tube amp building, effects pedal building, and related music projects. |
| Klaus_Boening\'s_Tube_and_Audio_Homepage Describes a 50 watt tube power amplifier for high end applications, including schematics and description of the circuitry. |
| Leon\'s_Audio_Page Showcases the author's build of tube amplifiers, pre-amplifiers and restorations of tube radios. |
| Lighthouse_Electric_-_Hobby_Electronics Projects and tutorials. Switched Mode Power Supplies, Vacuum tube and solid state audio amps. |
| Matthew_Anker\'s_Electrostatic_Loudspeaker_Page Information on HiFi electrostatic loudspeakers. Contains information on how to get started and build a basic panel. |
| nMine_com_Developments__Multi-amplification_DIY_Project_ Description and photos of multi-amp PCB with three integrated amplifiers each PCB and 24 dB/Octave Linkwitz-Riley Electronic filters. Configurable as a bi-amp or tri-amp. |
| Pass_Do-It-Yourself Projects by Nelson Pass including amplifiers, preamps and loudspeakers. Site offers information on circuit boards, FAQs and how to articles. |
| PCB-Design Kristijan Kljucaric offers his blue-colored PC board (PCB) designs for high-end DIY projects supported by Pass Labs, including amplifiers, pre-amps, crossovers, and power supplies. |
| Pete_Millett\'s_DIY_Audio_Pages Depository for a variety of audio designs and projects, especially tubular amplifiers. Site offers photo gallery and details on the author's projects, downloadable PDF documents, and technical diagram |
| Pjay\'s_DIY_Speaker_Building_Page Information on speaker building: how to build speakers, find drivers and a listing of projects. |
| Promitheus_DIY_Audio_site Includes projects and articles about amplifiers, preamplifiers, speakers and cables. |
| RJM_Audio_Cable A resource for the design and construction of speaker cables, interconnects, and digital cable from inexpensive and commonly available wire and cable products. |
| Tube_Amplifiers_by_Giovanni_Schiavon Offers a range of drawings, photos of components and complete builds, downloadable manuals, and descriptions to build vacuum tube amplifiers. |
| Wade\'s_Audio_And_Tube_Page Discussion of vacuum tube audio amplifiers and high fidelity equipment with photos and schematic diagrams. |
| XO_-_An_Excel_Crossover_Design_Tool Passive 2-way crossover spreadsheet design tool. Models allow complex speaker impedance, acoustic target shapes, series or parallel designs, and impedance compensation circuits. |
| Antique_Brass_National_Cash_Registers Excellent Information and Links about Brass National Cash Registers |
| The_Brass_Cash_Register_Shoppe Specializes in parts, repair & Restoration of antique fancy brass cash registers, or woodcase cash registers. Free appraisal. Buy or sell your cash register. |
| Brass_National_Cash_Registers Images and information on Antique Brass Cash Registers. Also has a for sale page. |
| Cash_Register_Memorabilia Collector of Antique National Cash Registers. |
| Cash_Register_Sales,Service_&_Supply_Inc Supplier of new, used and antique cash registers, parts and supplies including paper rolls and ink products. |
| Who_is_NCR? National Cash Register History. Site includes nice images. |
| British_Mad_Magazine A collection of the covers of MAD UK. |
| Cracked_Online Previews, excerpts and interactive content from Cracked Magazine. |
| The_Funny_Times Monthly liberal humor review features comics and columns. |
| Mad_Magazine Official site of this well-known, long-running satirical magazine. |
| Now_You_Know Small, downloadable booklet poking fun at the Scots and Scottish life. |
| David\'s_Amusement_Ride_Extravaganza Features history, photos, and patent images of various rides. |
| Random_Terrain\'s_Tilt-A-Whirl_Tribute Features images and links related to the amusement park ride. |
| Electronic_Toll_Collection_System Metro Road Systems' division. Includes client list. |
| E-Z_Pass Electronic toll collection system that is common in the Northeast U.S., based in New Jersey. |
| Halifax-Dartmouth_Bridge_Commission Authority for the Angus L. Macdonald and A. Murray MacKay Bridges that connect Halifax to Dartmouth in Nova Scotia, Canada. |
| Highway_Toll_Administration Provides electronic toll collection services. Site includes client information. |
| HowStuffWorks___How_E-ZPass_Works Fully illustrated tutorial explains E-Zpass, an electronic toll-collection system consisting of a 900-MHz band car transponder, antenna, lane controller, LAN and host computer system. |
| HowStuffWorks___How_Intelligent_Highways_Will_Work Graphic narrative shows the future freeway's new, cheaper technology and explains how ubiquitous digital devices will aid in easing our traffic woes, perhaps using triangulation. |
| International_Bridge,_Tunnel_and_Turnpike_Association Alliance of toll operators and associated industries. Includes news and resources. |
| MACPASS_-_Automated_Toll_Collection_System Service available for crossing of various bridges in the Maritime Provinces of Canada. Site includes FAQ, price information, and application forms. |
| M-TAG Electronic toll collection system for bridges and tunnels in Baltimore, Maryland, U.S. |
| Roam Electronic toll collection system used around Sydney, Australia, including on the M7. Includes e-TAG and e-PASS transponder information. |
| Toll_Facilities_in_the_United_States Full and partial lists with details, courtesy the Federal Highway Administration. |
| Tollroads Gives brief details about certain U.S. facilities. |
| TollRoadsNews Online private newsletter providing information and commentary. |
| Traffic_Technologies,_Incorporated Consultants for Intelligent Transportation Systems (ITS). Has links to clients. |
| AboutPetSitting Email list for sharing business tools, stories, support, and the responsibilities that are involved to run this type of business. |
| All_Canadian_Pet_Services_Network A professional association for pet sitters in Canada. Membership listings by area, newsletters, insurance information. |
| Camp_Bow_Wow A premier dog daycare and overnight camp with web cams. Find locations and watch the dogs play. |
| FindPetCare_com Find boarding kennels, pet sitters and dog daycare nationwide. Some facilities offer online reservations. |
| Meetup__Pet_Sitters Local groups for pet sitters and owners to meet and exchange information about sitting and related topics. |
| National_Association_of_Professional_Pet_Sitters Membership benefits, insurance, certification, newsletter, events, locator search engine, educational tools, and a reading room. |
| Pet_Owners_United Online club that aims to link up pet owners across the UK who are willing to offer mutual holiday pet care. Overview, registration and FAQ. |
| Pet_Piazza A pet sitter directory, search by city, state or zip code. |
| The_Pet_Sitter_Portal Directory of pet care professionals, breeders, shelters and other pet related products and services listed by region. |
| The_Pet_Sitters Pet sitting information and a bulletin board for pet sitters. |
| Pet_Sitters_Associates,_LLC Pet sitters' organization that includes liability insurance with membership. |
| Pet_Sitter\'s_Center Searchable listings. |
| The_Pet_Sitters_Forum Online community for pet sitters. Chat about day-to-day issues and ask questions about starting and managing a pet sitting business. |
| Pet_Sitters_International An educational organization for professional pet sitters which provides you with the benefits you need and want, at a price which fits your budget. |
| Pet_Sitters_Network Pet sitting directory in the US, search by zip code. |
| Pet_Sitting_Form A pdf-format document for owners to complete when leaving their pet with a sitter or a kennel. |
| PetDex Local and national listings for pet care service providers. |
| PetPro A discussion group for those starting a pet sitting and dog walking business. |
| Petsit_USA Locate professional pet sitters, dog walkers and dog daycares throughout the USA. Includes checklist to assist when interviewing pet care professionals. |
