A relatively new feature that websites have added are the pop up info blocks on particular links in page content. The double underlined links that you move your mouse over without clicking on and a little box appears. You move your mouse away from the link, and the box disappears.

Those little boxes can contain definitions of words, advertisements to lead you to products, or include miniature screen shots of the websites you see if you click to follow the link to.

For quick dictionary definitions, you may find it very quick and easily to utilize. Reading and you don’t understand the meaning of the word? Just mouse over the word and you have an instant definition. The same goes with the screen shots, though there’s not much you can really see at such a small scale.

As for advertising, it gets to be more annoying than helpful. If you’re moving your mouse around and you happen to impede on the space of the link, you’re looking at an advertisement that will stay there for more than the time it takes you to leave the space.

It can be so annoying that you will choose to disable JavaScript in order to avoid the rude awakening. Do they really make that much of a difference from traditional advertisements? You don’t see them on the page, which clears up the real estate to less flashy advertisements. They do provide more data for advertisers to play with, for example, user interaction with the page and their advertisements

Caution should be used when money is needed in return for annoying advertisements. It may not be worth the annoyance.