OK, thosearemyminstrels if you want funding for a PHD jobs.ac.uk is where some funded studentships are advertised. Also the Guardian on a Tuesday, and the Times Higher.
But the season for funded PhD studentships is pretty much past, especially those through the Research Councils. You'll be applying for an October 2014 start, and you need to start thinking seriously about the institution , topic and supervisor by the end of this calendar year.
And yes, you REALLY should be looking at universities' websites. PhD applicants are expected to be pretty proactive. Each university will have a section on its home page about postgraduate admissions. But it's not a mass operation like that of undergrad admissions. You'll need to apply on an individual basis, to an individual researcher or research team or department.
Do you have a topic? Do you have a team, a department, a supervisor you want to work with?
You'll need a PhD proposal -- I usually ask for around 1500 words. I think I've posted in a thread in here a summary of what I ask for in my Department.
Funded PhD studentships are extremely competitive at least in my field, and at a research-intensive Department/Faculty/University. The people we select generally have a First Class BA, a Distinction at MA, and an excellent, robust really thought through proposal. And then we grill-- interview them on that project.