Question: Where can I find a good Eclipse Mercurial Plugin?

Answer: 
Now that **Bitbucket is dead**, the new location of *MercurialEclipse* is:

* <https://foss.heptapod.net/mercurial/mercurialeclipse/-/wikis/home>

And the update site is:

* <https://foss.heptapod.net/mercurial/mercurialeclipse-updatesite/-/raw/branch/default/p2>
**Update 2017-May-6:** the below is no longer applicable, the accepted answer has been updated. 

I think the accepted answer is now outdated, what's available in the 'Market Place' does not work when adding a repository with latest Java 1.8 x64 ([Issue #60](https://code.google.com/a/eclipselabs.org/p/mercurialeclipse/issues/detail?id=60&thanks=60&ts=1433181751)) - was hoping installing a the snapshot would help but it did not. 

```
http://mercurialeclipse.eclipselabs.org.codespot.com/hg.wiki/update_site/snapshots
    MercurialEclipse    2.1.1.201401121312

```

Here are the other versions found:

```
http://mercurialeclipse.eclipselabs.org.codespot.com/hg.wiki/update_site/stable
    MercurialEclipse    2.1.0.201304290948

http://hge.javaforge.com/mercurialeclipse-snapshots
    MercurialEclipse    1.9.0.201106191824

```