Change name and URL

I have built a site with modx a while ago, and i am now dusting it off. I would like to change the URL of the site, from www.mysite.com/blog to www.mysite.com/new-blog what settings do i need to update?

Assuming you are using Revolution, there is a good guide here which is for moving between servers, but much of it will apply to you:
http://rtfm.modx.com/display/revolution20/Moving+Your+Site+to+a+New+Server

Making a complete package of your website files might be unneccessary for just moving it to another folder, but its always good to have a backup. From there on, the rest of the instructions should guide you as to what you need to change.

Thank you for this, I am actually using the old Evolution, and the similar dicumentation is here, if someone needs it.
http://rtfm.modx.com/display/Evo1/Moving+Site