David Vincent is the creator of Elt World Wiki, ELT World Discussion forum and a surprising number of blogs (however his profile at blogger.com is now unavailable). He also has a Twitter account: https://twitter.com/eltworld. His last tweet is from January 2016.
Elt World Wiki
Elt World Wiki  is another wiki dedicated to English teaching. It was created by David Vincent in January 2008 and seems to have been formed in protest of a perceived over-commercialisation of sites such as Dave's ESL Cafe.
- As of March 2014 it had 146 content pages and 7 uploaded files.
ELT World Discussion
It was quite active and was a good place to go for advice about language, countries or schools.