You have a blog. You are free to choose the content of your posts. You are free to organize the webpage the way you like. Nevertheless, there are some rules you must abide by, rules that the whole blogging community should respect and uphold.
Three are the most important rules one must follow when blogging. If you fail to do so, penalties range from just negative publicity (which will undoubtedly have a direct impact on your inbound traffic or even your position on an SERP) or even legal trouble.
BLOGGING RULE NUMBER I – CITATION
Always cite your sources. If you want to refer to any other source except for your own blog, you should cite the original source’s name, be it another blog or website or a book or whatever which you got information from so as to avoid copyright infringement. In case of other blogs or webpages, you should also provide along a link back to the original. The same applies for videos, images or photos.
BLOGGING RULE NUMBER II – FAIRPLAY
Well, not a clearly defined one, but what you should keep in mind is that there may be repercussions because you wrote something that annoyed someone somewhere. What you include in your posts is available for anyone who accesses the web, so among those who visit your blog might be some who may look on a possible case of defamation. Keep that I mind, write accordingly.
BLOGGING RULE NUMBER III – PERMISSION
Back to Rule Number I. On occasions you may need to include a sizeable excerpt from an original source; it would be best if you came in contact with the original author (or copyright holder) and ask for his permission to include that particular piece of his work in your blog (in addition to a proper attribution).