Here's a link to a new Chinese reading project developed by Cynthia Ning (University of Hawaii) and Michael Everson (University of Iowa) and managed through the National (U.S.) Foreign Language Resourse Center.

From the website:

Funded by the U.S. Department of Education, these Read Chinese materials were developed to provide online e-learning reading lessons aimed at beginning and intermediate students of the language.

The materials respond to a rapidly growing interest in Chinese language study among American secondary school students. Using a variety of topics selected to interest high school students, the materials also reflect the national standards established for Chinese by the American Council on the Teaching of Foreign Languages, as well as the latest principles in online instructional design. The materials may be easily used by individual learners studying on their own or by teachers assigning them for individual or group study.

Each lesson is available in both the Simplified characters used now in the People's Republic of China and in the Traditional "Full-Form" characters that are still used in Taiwan, in Singapore, and many overseas Chinese communities.