For me the auto linker is a bad idea. I know a lot of people use them for convience ect..But it is better for you to actually review the site on your own. A site could be blacklisted site, hidden text site, mirrored site, a site that is totally not related to yours ect.. Unless of coarse there is a program out there that auto checks for these things.
I believe in keeping my resource links at 50 because of all the changes coming. But its up to you. It could pontentially affect your pr but serps would be okay. greek39