The Google algorithm is software that brings in the company approximately $40 Billion per year. So do not underestimate it or think that you can get away with cheating their system. You may do so in the short-term but eventually, like any criminal, they will find you. I know from first hand experience.
Google Panda is an algorithm that was created in February 2011 to fight websites that either use “scraped content”(copy and pasted) from other websites or through their own. In addition, sites that had what is known as “content farms” or articles written by random authors on a site that offered no real value. An example of a site like this would be hubpages.com. They accept articles from anyone and usually will allow the author to point a link back to their site.
Google Penguin is a algorithm update that struck on April 24, 2012 and impacted approximately 3.1% of search queries. Meaning that effectively the search rankings in Google changed by 3.1%, which left many in the search community out to dry as webmaster’s that previously used to create a bunch of links to their website (sometimes known as “SEO” depending on who you talk to) were taken out of the Google’s SERP’s (search engine results page).
More specifically the Penguin Update targeted websites that made links to their site with the keywords they were trying to rank for.
Before the update, Google would rank websites based on how many links it had going into the website. More importantly, how many links did it have going into the website with the keyword someone may be searching in Google.
So before April 24, 2012, let’s say I wanted to have this website rank #1 on Google for the term “how to make a website”. What I would do is go on every webmaster forum and create links to my site with the keywords “how to make a website“.
Before April 24, 2012, I used to make websites in a matter of days and spend months linking them to get as high as I could on Google. Once I got to the top spot, or close, I would move on to the next site. Today, that has all changed. I now spend all my time just creating content and zero of my time making links. That’s right, ZERO, as in the number that looks like a big doughnut. I only spend my time creating the best content I can in the time I have.