Transclude a page from another language or another project

Wikipedia:Translate us is perhaps the project you're looking for from the encyclopaedia. But really it's more of a "heads up" and "where to start" for people who want to contribute a translation for another language or back into English.

This page is a guide for anyone, but particularly new volunteers, willing to help translate articles from the English Wikipedia into other languages.

In particular it lists steps that you'll go through to translate. Some of which include:

1. Find a suitable article, which exists on the English Wikipedia, but not on the Wikipedia in the other language (or where the other language only has a stub). This tool can help.
2. Translate the English article into the new language.
3. On the other Wikipedia, go to the corresponding page, and click the button marked "create" or "edit" in the new language.
4. Paste your translation in. Don't worry too much about formatting at this stage.

etc.

So Wikipedia has more of a guideline than an appointed committee on these efforts.

Setup a HTML anchor manually using Template:Anchor.

Say that you want to link to a section called "Overview" in an article. Add the template before the heading to make it look like:

{{Anchor|AnyTextYouWant}}
<!-- Note to other editors: Don't change this anchor text -->
== Overview ==

(Of course, the comment line is optional.)

Then make a link to the section as [[Article#AnyTextYouWant]]. The link would not break as long as the anchor text is not changed.