Best Practices on Content
It should be said that there really is a best practice to quoting content on the Web. If you did not know it already, all content on the Web is covered by copyright laws.
One can not simply copy an article in entirety and then paste it into a blog or web page even with credit to the original author. One can copy one or two paragraphs, quote it, and then link to the full article on the original author's website, but to copy and paste the full article into your own web page on your own website is a big no-no.
Unique content on your website and blog are important. There is simply no way around copyright laws or taking the time to create good content.
We routinely check to make sure that our content is protected and properly documented and linked back to our site on the Web. If you were not aware, there are even free online services that will scan the Web for content that matches your own pages. Don't get yourself in trouble needlessly, make sure that you are following the best practice when it comes to content.