My revised web site www.groupoids.org.uk was released a little prematurely due the old one threatened with removal by Bangor University and there was a lot that did not work. I hope people will find it much better now, thought there are still details being improved. I have also been able to incorporate the old www.pop,maths.org.uk web site which is now available as www.groupoids.org.uk/popmath/cpm/centre/index.html In this process I have also been able restore lots of quicktime sculpture animations which were not working due to changes in browser compatabilities: the movies had all to be converted to .mp4. I've also added one which was only available on a CDRom: http://www.groupoids.org.uk/popmath/cpm/sculpture/pages/destiny.html It expresses John Robinson's understanding of modern scientific discoveries. Nowadays many browsers can take it nicely (chrome,opera) though firefox claimed it needed a plugin. Please let me know of any problems. Actually I have one problem. The final supposed unknot on the first diagram on http://www.groupoids.org.uk/popmath/cpm/exhib/pagesexhib/knotsame.html has got one crossing wrong and is not an unknot! If anyone would be prepared to edit the file I'd be grateful! Ronnie Brown [For admin and other information see: http://www.mta.ca/~cat-dist/ ]