Motherboard Discussion at hardCOREware - Forum dedicated to motherboards, on a site discussing high-end x86 hardware. - http://www.hardcoreware.net/forum/forumdisplay.php?f=9
HardwareCentral Motherboard forum - Large forum about motherboards and CPUs. - http://discussions.hardwarecentral.com/forumdisplay.php?f=7
ACME Motherboard Finder - Web-based utility for selecting a motherboard based on multiple user requirements. Lists over 1000 models. - http://www.acme.com/build_a_pc/boardfinder/
The PC Technology Guide - Outlines the PCs main circuit board, including bus standards, chipsets and connectivity. Includes graphics, diagrams and an integrated glossary. - http://www.pctechguide.com/11Motherboards.htm
Spec Sheet - Correlates spec sheets from various motherboard manufacturers into a searchable resource. - http://specsheet.info/doku.php/computers/motherboards
Motherboard Manuals for Intel - Links and references to Genuine Intel motherboard documentation. - http://www.x86.org/intel.doc/intelmotherboards.htm
How Motherboards Work - Beginner's guide to motherboards, their operation and internals. - http://computer.howstuffworks.com/motherboard.htm
VP6-Board.com - Resource for the Abit VP6 motherboard. - http://www.vp6-board.com
Asus A7V UK - Dedicated to the Asus A7V and Asus A7V133 motherboards. Provides overclocking and modification information. - http://www.asus-a7v.co.uk/
ELHVB - Manuals for older motherboards and BIOS information. Also some legacy I/O card manuals. - http://www.elhvb.com
Motherboard Manuals Data and More - Listing of motherboard component specifications ranging from vintage 486 to pentium models with complete manuals and detailed diagrams available. - http://motherboards.mbarron.net/
Sharky Extreme - Motherboard reviews, comparisons and recommendations. - http://www1.sharkyextreme.com/hardware/hardware_mb.shtml