What? :)
> IANAL
> What I think they mean by this is that you shouldn't link to resources on their website to make it seem like they endorse your (product, website, whatever).
https://news.ycombinator.com/item?id=25153873
https://www.berkshirehathaway.com/subs/sublinks.html
> FOR A FREE CAR INSURANCE RATE QUOTE THAT COULD SAVE YOU SUBSTANTIAL MONEY WWW.GEICO.COM OR CALL 1-888-395-6349, 24 HOURS A DAY
...on the homepage of a quarter-trillion dollar company, with no other ads.