I love Google Webmaster Fetch as Google to get the page crawled for freshness. Is there a way to do something similar on a domain I don't control?
I can't add the specific domain in Google Webmaster directly. But could choosing "Crawl this URL and its direct links" on a page that has a link to the specific page I want to be fetched (again) do the trick?
Another approach that I suspect may work is to increase attention on social media. E.g. if a link is seeing a lot of attention suddenly on Twitter I'd expect it to be checked again by Googlebot. Is there any research about this out there?