While I welcome emails and try to eventually email people back, there may be a more efficient way to do things.
If you find an error on a page, please leave a comment on the page in question. This will let me to see it quickly and make the correction.
I have no problem with anyone linking to this site. In fact, please do.
If you're asking to exchange links then the answer is no. I link out to acknowledge sources and showcase resources. If your site is something I feel is of interest to the audience here then I may make a post about it. If you feel I've overlooked a source of some material, I'll be happy to correct it by adding a link.
My email address is: email@example.com.