For a long time people have discussed the effects of gaining too many back links too quickly and how Google will penalize you if they decide in their infinite wisdom that you are gaming the system with paid links. I'd like to ask for opinions on this subject but I'd like to ask that only professional and very experienced SEO's only post those opinions. I ask this because this is a very specialised topic and that too much speculation already exists. Logic tells me that a penalty would only be forthcoming if a human review was performed on the site in question and that it would only happen if there was clear evidence of gaming going on. I say this because it would seem, logically, that the entire Google system would/could not work effectively if it was a hard and fast rule. The system does work however so I wonder what is the evidence to support the idea that an massive influx of new links will be penalized. Case study: We are all now familiar with the story of Bill Clinton and Monica Lewinsky. This was the biggest story of last century (on the www). Prior to the original story breaking the Drudge Report, where the story originated, was nothing special as far as authority sites are concerned. Within hours of the Drudge Report breaking the story literally thousand upon thousands of sites were linking back to the story. The sites linking in varied from news, gossip, grudges, opposing political parties, lobby groups, and personal blogs and websites. The owners of the originating site could not have controlled this in any way. As new information came to the fore more links appeared in the index. Understandably this all tool place prior to the machine that is today Google. However that does not detract from the notion that the same thing could happen today. Lets say my little blog somehow got news of Obama having an indiscretion with his house keeper. It's quite realistic to assume that within 24 hours there could be up to 50,000 links back to my site and the story. Today my site has around 250 links. If Google penalizes all sites that get too many links too fast then my site, which would actually be the lead source of information for that particular topic, would be excluded from the SERPs because of that massive influx of links in such a short period of time. So as I said logic tells me that a penalty of this nature could not be accurate, but logic does not always win the day. So what is your opinion, and more importantly have you ever tested it to see what the outcomes were?
Google Penalty often happens because of link farming, as I had observed Most sites that are penalized are sites that are using Disqus on their commenting system. As we all know with disqus you can simply follow the comments of others thats what you call link farming. when Google check with some sites and notices that there are too much link in your site from commentators it will automatically penalize you, it can decrease The sites actual pr or from do follow it becomes no follow.
You want my opinion? I'll give it to you. You're almost 100% right. Google's algorithms do likely have filters in place that will detect spikes in new links to a Web page (note I said page, not site) and if anything looks unnatural, those filters would trigger a manual review. However, as long as the page was legitimate, and the links were being acquired naturally (via word of mouth for instance), then you'd be fine.