Quite some time ago http://gostash.it/en/ was launched by me and Damir Fattahov. The project is about gathering useful high quality code snippets which are filtered out by community who rates them. Most of the posts are in Russian version (see the language switch link at the bottom) but there are some cool things I’m posting in English as well. You can join and post your stuff or bookmark existing snippets for future use.
The project is powered by Yii 2.0.