Including anything more then your title(s) (PhD, etc) and perhaps certifications (CPA, etc) in your sig line is more then enough.
Nobody wants to see a hyperlink to your resume / projects ... and the folks that would (eg: internal team of researchers that collab on projects) would likely have alternate ways to go check that stuff out anyways.
It just seems lazy and unprofessional to have that included in the sig line on EVERY email sent from an account. It's need-to-know information, and not every email will require that. If I got an email from a person that had a link to a personal page that showed their CV or all the stuff they're working on in college.. and my correspondence with them required none of that.. I'd think the person was narcissitic or lazy. Either they think they're so awesome they need to let everyone know how awesome they are. Or, they're lazy and are using their email to pass along their resume to job hunts, and are just doing it for every email becasue they're too lazy to take the 2 seconds to copy paste the link in ONLY on the emails to headhunters when needed. I wouldn't need to see that stuff.
I just view this from a professional environment. When I email people at work I don't have a link showing my resume and all the stuff I'm working on at my current job. All my sig line includes is my name and maybe my job title and dept (depending on who I'm contacting).
In some situations I will purposefully not include job titles and dept just to see how forthcoming a person is with information, or to let the person know I'm making an informal inquiry (depends on what I'm doing at the company and what goal I'm trying to achieve).
You could also consider this detrimental to you if you fire off an email to someone you DON'T want to know that information.
And, including that kind of extracurricular info in every sig line of every email makes all recipients feel "unspecial". Like, "Here's info about me, whether it's relevant to our correspondence or not... I don't care about tailoring the message to you, it's all about me, me, me."