possible to add votings/reviews from other websites ?

hello everybody,
I have a question. My blog/website is about diving and diving courses and there is a big german dive-website called taucher.net.
on that page people can vote or leave reviews about dive instructors and guides.
is there a way that i can include this into my website/blog ?

ether as a small widget on the side. or even as an extra page ?

i know i could just put a link in and say please click here to vote for me. but honestly who does this.

please any ideas, possibilites ??? thanks a lot