Measureless Mind is dedicated to everyone who draws inspiration from the discourses collected in the Pāli Nikāyas and who is motivated to practice the Buddhadhamma and live their lives in accord with these teachings.
An account of a ten day retreat at Suan Mokh, South Thailand by Steven Gilman.
Vipassana.com has loads of stuff on Vipassana Meditation: online meditation course, retreats calendar, bookstore (with very highly recommended books), online books, and many more to help meditators.
This course, "First Steps," Units 1 and 2 of the longer 6 Unit course "Going Beyond what you Believe to be True," is foundational to the rest, though it is highly valuable as a course in itself.
In these two units you will learn a concentration practice which is an important foundation for mindfulness and insight. You will come to experience things as less substantial than they seem. You will be able to bring your body to a relaxed state.