That's not a page I've used much (if at all); however; here's some thoughts on your proposal.
- How do I link to modules on CPAN?
Instead of just changing what's already there, I think adding more link types might be a better way to go.
So: keep [cpan://...]; add [mod://...]; maybe add [dist://...]; and consider adding some or all of the other 10 link types shown in the CPAN section of the Shortcuts page.
- What shortcuts can I use for linking to other information?
I've always considered this to be a rather wordy node title.
Furthermore, I don't really think it truly reflects the node's contents.
Although it says "shortcuts", this is actually the preferred markup for all links.
I agree the "other information" part suggests something other than what was originally intended: in your case, it suggests "other than CPAN"; elsewhere, it might suggest "external links".
Perhaps "How do I add a link to my post?" might be a better choice.
This uses the same format as many of the links in "Posting on PerlMonks" (e.g. "How do I change/delete my post?"); in fact, it would probably be a useful addition to that page.
[In the interests of full disclosure, I will admit that, in order to get the "CPAN section of the Shortcuts page" link above, I needed to use: <a href="?node_id=43037#cpan">CPAN section of the Shortcuts page</a>. A [...] style link could not achieve this (or, at least, I couldn't find any way to do it, either by experimentation or documentation).]