Thanks to everyone's help there are 450 Unicon pages on RosettaCode. Here's where we stand amongst the almost 600 programming languages
1. Tcl (631 members) 2. PicoLisp (594 members) 3. C (572 members) Python (572 members) 4. J (551 members) 5. Ruby (542 members) 6. Go (506 members) 7. Perl (480 members) 8. Ada (466 members) 9. PureBasic (451 members) 10. Haskell (450 members) Unicon (450 members) ... 15. Icon (421 members) We have a fairly thorough list of documentation including a content index for all the old Icon newsletter articles. There's still a fair amount of overlap of Icon and Unicon code but we are starting to get more Unicon only examples. There's a fair introduction http://rosettacode.org/wiki/Icon%2BUnicon/Intro including sections on Differences between Unicon and Icon and another on Contractions We've also setup links to ObjectIcon an spinoff I was previously unaware of.