3. Make sure you can read any text that are on the graphics.
4. The LONGDESC attribute should link to a web page that explains the whole run-down of the image, it is not an "extended alt attribute."
Priority 2 user checks
2. Make sure your images are readable against the background, and that your text is also easily readable (don't use light colors on light backgrounds, they must contrast). Print your webpage out in a grayscale printer, and if there is any text you can't read, there isn't enough contrast.
Priority 3 accessibility
1. Use something to split up your links. It's talking about the footer images/links, use a pipe or brackets around them to seperate them, or place them in a list.
Priority 3 user checks
1. Since it's a blog, you should provide META tags that specify the blog index, next entry, previous entry, and sitemap/help area.
2. Use TABINDEX on your links, form elements, and other objects.
3. If you ever use an abbreviation ("etc."), or an acronym ("FYI"), use the ABBR and ACRONYM tags respectively.
4. Use ACCESSKEY on your navigation links.