Are you interested in making your own cloth diapers or diaper covers? Here are some resources!
And here are my blog posts on making your own:
This is a great spot for patterns for sewing all types of diapers, diaper covers, and accessories. They also carry fabrics and notions to get you started. Cons: Their fabric and notions are expensive.
This is where I originally sourced my soaker pattern and longies pattern. I chose to alter her pattern to make patterns that I love and that are more my own and fit best with the materials I use.
Find yourself some polyester fleece or some high quality upcycled wool, and you can make your own diaper covers on the mega-cheap.
This is a great site full of useful information and high quality fabrics. They pride themselves on carrying tons of eco fabrics and have made-in-USA options. They carry wool jersey and interlock for covers. They have CPSC certification for many their fabrics.
You can find a huge variety of fabrics here suitable for cloth diapers: fleece, interlock, jersey, synthetics, etc.