Tag Bulb is a new search engine which allows you to search for specific tags across various platforms such as Flickr, Riya, YouTube, Webshots, Google, Technorati, Ma.gnolia, Amazon and a host of other social media sites which rely on tags for organization.

Tags are increasingly becoming a hot topic in the world of online marketing. The first company to realize a meaningful way to monetize a user’s input or preferences based on a tagging scheme and apply that (in a meaningful and non-scum fashion) will endear themselves to many of the Fortune 500 who are scratching their heads over this whole web2.0 thing.

The world of online marketing is slowly shifting away from a links based hierarchy to a tag based attention economy (see TechMeme and Tailrank). Understanding tags and how they can impact your program will definitely place you a notch above your competitors.

As a reminder, if you see an interesting story, blog post or article that you’d like to discuss further here on CostPerNews, simply tag it with “costpernews” on either the del.icio.us or ma.gnolia.com social bookmarking services. Quite a few of you have already taken advantage of that, and I hope more of you will!