While many bloggers can spout a conspiracy theory once in a while, there are some blogs that specialize in conspiracy theories, from making them up (okay, to be fair, investigating and proving them) to debunking them. The top post on one such conspiracy theory blog, Above Top Secret, is The Coming Revolution:
Back in the 1940s the governing forces on this planet were warned by certain parties not from this planet, to change the course of the direction they were headed in, so that the peoples of Earth could unanimously have a better and positive future. Not only did the governing forces of this planet ignore the issues that they were warned about, they irrationally reacted by interpreting this warning as a declaration of war. They then diverted all their attention to developing interstellar weapons and systems to prepare for an interstellar war. They also systematically developed highly advanced technology that would control the populations of the world in every area of life. The governing forces were helped by certain extra-terrestrial intelligences that supplied them with the specifics of technology that this civilization was in no way prepared for.
This technology was used with the specific intent of controlling the minds of every individual on the planet…
You may laugh, but some take this very seriously, finding evidence all around them to support their positions. Read their evidence long enough, and you may start to see pieces of the puzzle clicking together as the irrational and disconnected are brought together in a way that makes sense.