Two most common way of getting GC are: employment based (EB), or family based.
If you are going through the employment based route, then there are also several catagories depending on your situation and abilities. I strongly suggest that you visit the INS website and at least get an overview of what the different catagories of EB are.
If you are going through the employment based route, then there are also several catagories depending on your situation and abilities. I strongly suggest that you visit the INS website and at least get an overview of what the different catagories of EB are.