I'd also prefer separate SIGs, but with discussion summaries crossposted regularily (depending on activity) by the SIG leaders. This will keep them tied, without actually merging them in one SIG. -- Vladimir MARANGOZOV | Vladimir.Marangozov@inrialpes.fr http://sirac.inrialpes.fr/~marangoz | tel:(+33-4)76615277 fax:76615252