Where can I learn about standards for web graphics and video?
A lot of this is a question of tradeoffs, not of there being one correct answer — higher resolution files means greater quality but also greater bandwidth and storage expenses, etc. So the answer is really going to depend on your organization’s (and users’) needs; you’re not going to find a book or website that can tell you the answer. One thing to consider, if you’re producing a lot of content, is whether it has any potential for reuse in the future. If so, you’ll want to keep versions of everything in storage in higher resolution than what you put up on your website today, against the expectation that over time bandwidth costs will drop and users will expect higher quality files. What are the pros and cons of different graphic file formats? This part can be answered pretty simply: GIF is for images with relatively few colors, and large areas of the same color — charts and graphs, not photos. JPEG is best for photographs. The degree of compression can be controlled pretty closely, a
