The second part of them is meant to be used on big writings, as titles for your site or things like that. if you try them on small text the result is pretty messy.
You can of course use them for web buttons as well.
Various materials posted here are anonymous, disclosed freely in discussion groups or on other sites and Google images. But if you own some art and do not want to see published in this blog JUST ASK FOR REMOVAL IN COMMENTS, or say that it is of his own that put the credits. And please be polite as if here was because it was found elsewhere on the Internet without the credits. Thanks!