George posted the following biology resource to STS-L. Note that the Arabidopsis Book is open access.
The Arabidopsis Book is an Open Access project bringing together an encyclopedic description of one of the most heavily studied plant species. Quoting from the American Society of Plant Biologist's (ASPB) website:
This electronic book, The Arabidopsis Book (TAB), ISSN: 1543-8120, is an attempt at a new mode of communication between researchers and a new model for scientific publishing. TAB in its initial stage is a compilation of over 100 invited chapters, each reviewing in detail an important and interesting aspect of the plant Arabidopsis thaliana, with reference to what is known in other plants and in other kingdoms.
Fulltext v1+ (2002+)
The ASPB version is organized into sections, then access is at the individual chapter level, in PDF only. BioOne provides both HTML and PDF versions of each chapter. In addition, BioOne has implemented a search interface.
Although BioOne's materials are primarily subscription-based, The Arabidopsis Book is one of a few BioOne collections which are Open Access. In addition:
Fulltext v85+ (2002+)
Fulltext v1+ (1917+) http://www.fcla.edu/FlaEnt/