Plugin to keep updated on friend’s blog posting

Hi there,

Hope you all doing well..

I am looking for a plug in that updated my friend link at my blogroll when they post new article, so the top spot keep on changing depending who post the newest post. Is a quite a common plug in or feature but i cant seems to find it in wordpress.I think it is some sort of pingback or trackback

Could any of you provide me some light with this.

many thanks
sSs