When Internet is only used to promote ideas than the visitors often aren't always interested. The freedom in communication is essential. I choose with whom I communicate and what I like to exchange. Communication is always 2-ways. Promoting ideas sometimes is oneway communication.
Internet only brought the speed-element. I can communicate over large distance instantly. Also I can send images quickly without sending out the original. I can even make originals that don't exsist (digital art). I can see what others are sending me (on e.g. a Blog) and anticipate on what I receive before I actually have received it. The time-factor is what makes Internet so fascinating. Projects that would take years suddenly can be done in minutes when one knows the tools and software.