In short, press request alerts are requests for sources of information from journalists. Let's say you're a journalist putting together an article on wearable technology for The Guardian. Perhaps you need a quote from an industry expert or some products that you can feature within your article? Well, all you need to do is send out a request to a press service and you can wait for someone to get back to you.
Nice post. I was wondering if all this content of your strategy was been writien in blog of the site, or if you added to content in some other specific parts of the sites. I don't believe 100% in the strategy of reomoving links. If Google just penalize you taking into account your inbound likes, It would be so easy to attack your competitors just by buying dirty link packages targeting to their sites.
Remember when you used to rely solely on search engines for traffic? Remember when you worked on SEO and lived and died by your placement in Google? Were you #1? Assured success. Well, okay, maybe not assured. Success only came if the keywords were relevant to your site users, but it was the only real roadmap to generating site traffic and revenue.