Hi,
I have noticed that some users of the ET are not on the Cactus mailing list, and that some emails have been sent to the Cactus mailing list recently which might be important to the wider ET community.
So, if you use Cactus, I recommend that you join the Cactus users' mailing list, users@cactuscode.org:
http://cactuscode.org/about/mailinglists/index.php
Carpet used to have its own mailing list, but discussion about Carpet now happens on the Cactus mailing list instead.
Similarly, if you use the Simulation Factory, there is a mailing list for that as well:
http://simfactory.org/simfactory/community/
users@lists.einsteintoolkit.org