I think that this is a really good resource. It lists a lot valid arguments for not doing or doing certain things as far as the design of your page goes. They detail why certain design elements are bad choices and how to avoid them. The site also contains a lot of images and videos that are examples of "web pages that suck." The website is pretty humorous, too.
The presentation magazine's website gives endless tips on how to improve presentations. The URL above specifically covers the Visuals aspect of presentations. Their tips on the use of visuals can help achieve the goals and objectives of your presentation.
I think this is a good resource that will help improve my wordpress blog because it gives tips on what makes a good blog content-wise, what is important about it, why it exists, what people are looking for when reading your blog, it gives tips on how to gain the most traffic into your blog, how to promote your blog, how to tell if your blog is successful, and even how to make money using your blog (wow!)
I like this website because it gives examples of what information would be included regarding business goals, audience and efficiency for both internet and intranet.
I like this site a lot because it covers just as much information as the book. Plus it's really easy to understand; it doesn't include a lot of technical jargon.