These are very useful. Can we have quick links of them while answering or on sidebar of questions under some link?: Catalog of limits, a, MathJax basic tutorial and quick reference, List of comment templates, List of Generalizations of Common Questions
I don't think this will happen, but you could always use your browser's bookmark functionality for this. I've made some pastelets for the comments from comment templates and put them into a bookmark folder, for example.
All of these were made at pastemark.ru using the target @comment. For some reason one of the comments doesn't work with this site however (I forgot which one).
This might be potentially useful, but it's something users can handle themselves, i.e. using bookmarks or applets. It seems too small of a detail to be trying to make a network wide tweak.