I recently bought a small number of cards from a seller on one of the forums.
2. 1998 Paramount Gold. I have a few of the color variations now from this set.
3. 1999 Skybox Molten Metal MS Xplosions. This is my favorite of the group. This card is made of a thin metal and is a very interesting insert. It is my first ever from this set.
4 and 5. These are from the 1998 Pinnacle Snapshots set which was a collection of 3 by 5 photos released as a baseball card set. They came in packages designated by teams. I like the second one better. These will not go in my card album but will be with my other items, such as my SLUs and my comic book.