iTipping
- Provides quick, easy-to-find information on tipping, including a free card-sized tip table and tip calculator.
- http://www.itipping.com

Tip the Pizza Driver
- Etiquette for when pizza is delivered. Ways to speed up the delivery time and make pizza delivery more enjoyable.
- http://tipthepizzaguy.com/

Tip Table
- Sells tip cards that consumers can use in restaurants to help them figure out an appropriate service tip.
- http://tiptable.com

Tipping Etiquette
- A guide for most tipping opportunities, including travel, restaurants, weddings, salons and Christmas.
- http://www.findalink.net/tippingetiquette.php

Tipping - Wedding Etiquette
- The people hired to work at weddings often get tipped. Here's a guide.
- http://www.ourmarriage.com/html/tipping.html

Tips on Tipping
- A completely unofficial guide to restaurant and café tipping.
- http://www.stratsplace.com/rogov/tips_on_tipping.html

An Aussie in America - Tipping
- Comparison of tipping at restaurants in Australia and the United States.
- http://www.aussieinamerica.com/eating/tipping.htm

Original Tipping Page
- Information on what is considered proper tipping etiquette in different situations such as skycaps, hair salons, casinos, cruises, disc jockeys, hotels, limousines, restaurants, trains and taxis.
- http://www.tipping.org/

NYTimes.com - Tips Past the Tipping Point
- A chart that has been showing up lately on restaurant credit card receipts all over the United States does more than spare you the math. Going against typical tipping custom, it suggests tips calculated on the total bill, including the tax, and in amounts
- http://www.nytimes.com/2002/09/25/dining/25TIPS.html