There are a variety of organizations out there focused on cross stitch and other types of needlework. If you'd like to become a part of one of these groups and become part of their community, here are a few options - of course, there are others as well. A sampling:
The Cross Stitch Guild is a UK group started by well known designer Jane Greenoff. This is a worldwide organization open to anyone with an interest in cross stitch/counted embroidery.
The Embroiderers' Guild of America is a national organization with many local chapters.
If you're into samplers, there are several local and regional sampler guilds as well.
Of course, you can always start your own cross stitch club!
Also of note is The National NeedleArts Association (TNNA) . TNNA is a professional trade association for industry professionals, but they have some great community activities as well. Their yearly Nashville Market trade show "has long been known as a primary venue for cross-stitch designers, as well as other needle art industry suppliers." Check out this article about students studying for a career in the fiber arts - Pathways into Professional Needlearts is a TNNA supported program.