If you are new to needle felting, or even if you are now a seasoned pro, you should think about joining any one, or more, of these online forums dedicated to the art of needle felting! Its a great way to sharpen your skills and get inspired by other like-minded artists!
Needle Felting 101
Needle Felted Paintings
Needle Felting WIP (works in progress) Pictures
Other Online Groups
Needle Felting Sub-Reddit
If you know of any other good places to connect, please let me know in the comments!