Meditation Expert
Offers books regarding a melding of Eastern and Western teachings on meditation techniques, stages of spiritual growth, metaphysical phenomena, and personal development.
http://www.meditationexpert.com

Awareness Plus
Offer classes in a form of meditation which is claimed to be the synthesis of four existing forms.
http://www.awarenessplus.com/

Meditation Society of Australia
Lists meditation groups in Australia. Also offers downloads, a forum, shopping, and an online meditation course.
http://meditation.org.au/

Erowid Meditation Vault
Information and links about various methods of meditation.
http://www.erowid.org/spirit/meditation/

Meditation
An article By Dr Tom J. Chalko explaining the process and stressing the need for a spiritual teacher.
http://www.thiaoouba.com/medit.htm

Learn to meditate
An overview of the different types of Meditation.
http://www.learn-to-meditate.com/

Meditation is Easy
Provides knowledge of meditation in a simple language. Includes a collection of meditation techniques and various tips for stress-free life.
http://www.meditationiseasy.com/

Intuition in Service
About the independent, non-profit programme to help in the awakening of the intuition, and highlight its role in the creation of a better world, through meditation and prayer.
http://www.intuition-in-service.org/

The Prem Rawat Foundation
Promotes and disseminates the speeches, writings, music, art, and public forums of Prem Rawat.
http://www.tprf.org/

Wikipedia: Meditation
An introduction to different traditions, forms, techniques, and benefits. Includes links to other resources.
http://en.wikipedia.org/wiki/Meditation