Wisc-Online
Wisc Online: Identifying Eukaryotic Animal Cell Organelles
This is a tutorial slideshow showing the internal structure of an animal eukaryotic cell. Each slide has excellent labeled drawings accompanied by descriptive text explaining the function of each part.
McGraw Hill
The Mc Graw Hill Companies: Eukaryotic Cells
This site provides a brief explanation of what a eukaryotic cell is along with detailed picture of a plant and animal cell.
Sumanas
Sumanas Inc: Discover Biology: Vesicle Budding and Fusing
Tutorial with animated illustrations showing how vesicles work to transport materials inside a cell and release them through the cell's membrane to the outside.