introduction to maths

i remember a while back seeing on this board a link to a website where some kind of graduate/professor had set up like a kind of 'guide' or do-it-yourself method to learning maths from the ground up. it was all categorized and chronologically ordered and had links and references about where to best learn things blah blah blah all that.

anyway, i had the page bookmarked and lost all my bookmarks recently. i was wondering if anyone has any idea at all about what i'm talking about. i understand it's a pretty vague description, but i think if anyone is on the same page as me they'll know what i mean.

if no one can help with this, then could i get any assistance in finding such a place? where i can get an introduction (to even the most basic algebra, just to refresh my memory) and kind of linearly progress along.

I KNOW IT EXISTS IM NOT INSANE

http://www.bbc.co.uk/dna/h2g2/C63

The BBC have a site where a few of the articles are surprisingly well-informed (though quite a few are also shite). It's less of a DIY maths course than a layman's introduction, but I've taken a shine to it. Looks like it might be user-submitted, too.