[Clipart] RE: Abi-Clipart - Vectoize question ?

[Gerald Ganson]

I was browsing around on WIKI this afternoon, and found the link to
Abi-Clipart.
They obviously get a fair amount of content from OpenClipart.

I don't know much about PNG and file formats etc, but it appears that
many of their PNG files are not, and have never been, vectors.

Just wondering though. Since they also list all the clips as public
domain, is  
it a good idea to possibly vectorize some of these files at some point
and 
submit them as SVG to open clipart ?