Exporting model with animation!

hi there
i just started to learn blender 2.5 through tutorials and videos in youtube>>
finally i could make a model, a plane (silly but for me its good)
i used an animation to make it move and turn around itself…

but when i exported it to OBJ and then used an OBJ viewer to see the model
i could see the model with out animation,

if some body has eny link to a video tutorial that shows how to export animation
or if some body can tell me what did i miss…i will be happy…while im waiting for answers ill keep looking for some site or video that can help.

The .obj format doesn’t include animation data.
Try something like .fbx or collada

thanks…