directly from google webmaster central blog:
what does violate Google’s guidelines on link schemes is when the main intent is to build links in a large-scale way back to the author’s site. Below are factors that, when taken to an extreme, can indicate when an article is in violation of these guidelines:
* Stuffing keyword-rich links to your site in your articles
* Having the articles published across many different sites; alternatively, having a large number of articles on a few large, different sites
* Using or hiring article writers that aren’t knowledgeable about the topics they’re writing on
* Using the same or similar content across these articles; alternatively, duplicating the full content of articles found on your own site (in which case use of rel=”canonical”, in addition to rel=”nofollow”, is advised)
Sites accepting and publishing such articles should carefully vet them, asking questions like: Do I know this person? Does this person’s message fit with my site’s audience? Does the article contain useful content? If there are links of questionable intent in the article, has the author used rel=”nofollow” on them?
I just received a new email from the IRS (Internal Revenue Service) alerting me about a criminal complaint against my company :))
Dear business owner,
A criminal complaint has been filled against your company.
Your company is being accused of trying to commit tax evasion schemes.
The full text of the complaint file ( .DOC type ) can be viewed in your Microsoft Word, complaint is attached.
AN official response from your part is required, in order to take further action.
Please review the charges brought forward in the complaint file, and contact us as soon as possible by :
Telephone Assistance for Businesses: Toll-Free, 1-800-829-4933
Email: [email protected]
Internal Revenue Service Fraud Prevention Department
The attached doc file complaint20150119.doc gave the following results:
Fun fun fun
Very interesting and rather bold experiment by the Groupon SEO team.
Our testing shows that, for a site getting in the ballpark of 50% mobile web traffic, the 60% of the traffic to long URLs reported as Direct is probably Organic traffic from Google
More on the subject here.