Assemblage is an art term used to describe many different art forms, and movements; a three-dimensional collage put together using preexisting, sometimes "found" objects that may or may not contribute their original identities to the total content of the work.
Regular Websites
An eclectic gallery of assemblage pieces by artist Stuart Vickars. Features a delightful collection of assemblages made from items occurring in nature, found items, natural objects, and personal memorabilia among other things. - Folk Art Findings
http://www.pressed-flower.com/artist/stuart-v/
Found object assemblage art, including kinetic and illuminative sculpture by artist Dan Levin. Includes an artist portfolio and image gallery. - Objects of Curiousity
http://www.danlevin.com/
The only repository for the study and display of Zymoglyphic art, artifacts, and natural history in the world. The creativity of the region is represented mainly through the assemblage of natural objects. Features special exhibits of natural object assemblage and maintains a curiosity cabinet of items that reflect the spirit of Zymoglyphic culture. - The Zymoglyphic Museum
http://www.zymoglyphic.org/