I wrote earlier about the idea that a New Moon is sometimes called a Black Moon. The Black Moon dates for 2014 included January when a new moon occurred on both Jan 1st and the 30th. The same is true this month with a new moon on both the 1st and again on the 30th. That second new moon is considered a Black Moon.
In some aspects of Paganism, particularly amongst Wiccans, the Black Moon is considered to be a special time when any rituals, spells, or other workings are considered to be more powerful and effective. This doesn’t seem to be universally true and some groups seem to only consider it a normal occurrence of a dark moon. I have even seen some posts online that say that no rituals should be conducted at these times.
Whatever your beliefs, these are dark nights and it has an odd feeling, especially on a clear night, to not see the Moon in the sky.