Advice on delivering a PowerPoint presentation. From Science Careers.
Website on designing and giving poster presentations.
Presentation software. An alternative to PowerPoint. Lets you zoom in and out of the images. Free licenses available. For more information, see AuthorAID Resource of the Week blog post #115.
Website giving extensive advice on preparing poster presentations.
Online guide from the Nature Publishing Group.
This article, by Joseph A Gallian, appeared in 2006 in the magazine Math Horizons, published by the Mathematical Association of America. Although the article is intended mainly for readers giving presentations in mathematics, much of the content also applies to giving presentations in other fields.
This article, by John E McCarthy, appeared in the Canadian Mathematical Society NOTES in 1999 and was reprinted by the American Mathematical Society. Although the article focuses on the type of mathematics presentation called a colloquium, many of the ideas in it also apply to giving other types of scholarly presentations.