Science Writing - Abstracts, Posters, Presentations
Writing Abstracts and Technical Papers, Styles Guides
Writing a Scientific Research Article
Guides for Creating Effective Poster Presentations
Elements of a Successful Poster - PowerPoint tutorial
Creating Effective Poster Presentations
PowerPoint Tutorial on Designing Scientific Posters
Flickr: The Poster Sessions Pool
Colin Purrington's Suggestions for Designing Conference Posters
Better Posters (great blog by Dr Zen Faulkes, a biologist at the University of Texas-Pan American)
Poster Perfect (article in The Scientist, by Edyta Zielinska)
Public Speaking
17 Public Speaking Tips That'll Help You Crush Your Next Presentation