Scientists who find it difficult to communicate in English would find the series of Web pages under the title "English Communication for Scientists" particularly useful1.
The series deals with many different ways in which scientists communicate; it does not focus only on research papers but includes e-mail communication and presentations at conferences as well. The principal author, Dr Jean-luc Doumont, conducts training programmes for scientists, and the series reflects this practical experience.
Readers of this blog will find in Unit 2, Writing Scientific Papers, systematic advice on structuring their paper, drafting it, and then revising it. The unit also includes advice for specific language groups2.
For more serious learners, the site offers short tests to check how well you have understood the contents. However, to take the tests, you need to register at the site.