Which CMS should I use for my site? GetUpReadUp.com

[getupreadup]

Hi there,

I was thinking of building a back end myself in Php for my simple website which I am manually updating.

Can someone kindly suggest some CMS that could do the job?

My site is getupreadup.com

I have never used a CMS

I would like to:
1. Be able to update any links via CMS or even mobile
2. Archive past pages
3. Filter links by country and importance

Thank you.