we did that on folha de s.paulo newspaper in brazil in the late 90's but mostly to link to the online version of the site the newspaper owned. it was a way to

we did that on folha de s.paulo newspaper in brazil in the late 90's but mostly to link to the online version of the site the newspaper owned. it was a way to give out more data for a news piece that could not fit in the paper. Usually external urls were printed in the paper anyway.