A generic simple tutorial brought out by Broadbandsearch - an ISP in the US. It covers some basics about various resources and instructions for google searches and more.
This guide describes the various types of writing that medical writers work at, the jobs that are available in this area, an overall guide to writing and importantly lists several more resources.
AuthorAID is a free pioneering global network that provides support, mentoring, resources and training for researchers in low and middle income countries. Check out training workshops, resources, mentoring and networking opportunities for continuous learning.