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Web Design and Development

• 921
• Accessibility Extensions for Mozilla/Firefox
• Toolbar to help users navigate pages, and also tools for developers to check their pages. Installation instructions and documentation.

• 922
• Anybrowser - screen size testing
• Enables you to test how your page appears at low screen resolutions - e.g. webtv, 640x480, 800x600.

• 923
• Color Vision - by Cal Henderson
• Test your website foreground/background colors for their contrast and clarity to color blind visitors.

• 924
• GrayBit Grayscale Contrast Tool
• Converts your page to greyscale to ensure there is sufficient visual contrast between elements.

• 925
• Juicy Studio: Colour Contrast Analyser
• Uses the W3C algorithm to check for sufficient contrast between background and foreground colours.

• 926
• Lynx Viewer
• Delorie online viewer enables you to view your site in a text browser.

• 927
• UITest.com: Site Check
• Test your website with the W3C, WDG, ATRC, WebAIM, WebXact, Bobby, Cynthia Says, HiSoftware, Site Valet, Colorblindness filter, and Google Viewer, simply by typing your site address once.

• 928
• Webnauts Net
• Offer a combined interface to collection of tools (W3C, CSE, and Cynthia validators, and also a Lynx simulator) for checking adherence to standards, mark-up and accessibility.

• 929
• About htaccess and XBitHack
• Beginner's guide to the .htaccess file and XBitHack, including examples.

• 930
• AskApache: Htaccess - The Ultimate Guide
• Frequently updated list of .htaccess examples and articles.

• 931
• Cooletips Htaccess File Generator
• Online Tool with many configurable options to create an Apache htaccess file.

• 932
• Htaccess Tools
• Simple generators to create portions of .htaccess files.

• 933
• PerishablePress .htaccess Tutorial
• Huge list of some of the best .htaccess tricks and tips.

• 934
• Style Guide for Online Hypertext
• Defines common terms and outlines good design principles.

• 935
• 404 Research Lab
• Offers a humorous alternative to the frustrating monotony of the dreaded 404.

• 936
• 404lounge.net
• Instructions for making custom 404 pages, gallery, links to other 404 sites, and a weblog.

• 937
• AlertBot
• Web site monitoring service that tests website availability, performance, and alerts webmaster of downtime. Also provides ftp, http, pop3, snmp, https, smtp, ip, and dns server monitoring.

• 938
• AlertFox
• Real browser website and web application performance monitoring. Supports transaction monitoring of sites that use complex HTML, AJAX, Flash, Flex, and Silverlight.

• 939
• Alertra
• Remote web site monitoring and failure notification from global network, supports http, https, ping, smtp, pop3, imap4, ftp and tcp-level checks.

• 940
• At Watch
• Watches your web site 24 hours a day, 7 days a week. It will send immediate alerts via email/pager, fax, or live voice if your site is down or broken.