As many of you know, it's important that your links come from different domains. I am not only talking about different "platforms" like forum links, gov links, social bookmarks and so on. What I mean is: Some websites have thousand of backlinks coming from a couple dozen domains. Yet this websites, seem to rank good and have no penalty. But isn't it unnatural to receive so many links from one domain? How many links can I have from one domain without triggering flags? Let's say I post a new article on Bloglovin every week and link to one of my articles or I do the same with web 2.0. Would I be safe? I couldn't really find informations about this topic so please share your experience and/or provide me good posts/articles about this topic.