Oxford Dictionary (UK English, but can also change search for US English)
Merriam-Webster (US English)
Canadian Oxford Dictionary (Cdn English) - subscription or hard copy only
Termium Plus, from the Language portal of Canada
Language Portal of Canada
Language Portal of Canada : Articles, exercises, and links for style, grammar, spelling, writing.... a must.
Via the Language Portal < Writing Tools - access to many French and English language tools and exercises including:
Termium Plus, for finding the right terminology to use,
Linguistic recommandations and much more!
Style guides and English grammar rules
The Online Writing Lab at Purdue University is an excellent resource for writing in English, having sections dedicated to:
The classic William Strunk Jr.'s Elements of Style
Guide to Grammar and Writing from the Capital Community College Foundation
Web style Guide for website design and presentation
Portal for writing and grammar from the University of Wisconsin-Madison
David Marsh's Grammar rules you can forget (and how pop lyrics are useful for learning grammar) - from the Guardian Newspaper
Sources requiring a subscription (or hard copies available) - but are worth the investment:
The Chicago Manual of Style, 16th Edition (Subscription required - or hard copy purchase)
Council of Science Editors - Scientific Style and Format, 8th Edition (subscription required - or hardcopy purchase)
Avoiding 'predatory' journals
Predatory journals are evil and are to be avoided. How to avoid them? Start here for a guide...
Jeffery Beall also has a list of predatory journals and publishers.
Writing tips, manuscript preparation...
PLoS Collections have a series of papers for researchers/academics (Ten Simple Rules Series), many dealing with manuscript writing and publication:
- Ten Simple (Empirical) Rules for Writing Science (by Weiberger et al.)
Kaj Sand-Jensen's (Univ. of Copenhagen) classic How to write consistently boring scientific literature (Oikos 2007)
The IEEE Pulse (engineering in medicine and biology magazine) offers advice on manuscript preparation
Steven Pinker asks why writing (especially scientific writing) is soooo bad. - from the Wall Street Journal
The University of Wisconsin - Madison has a checklist for reviewing the grammar and writing of manuscripts