Anita's blog from the Rio Grande Valley Chapter Texas Master Naturalist is a really good resource you should check out. She posts informative articles twice monthly. She also frequently writes articles for Valley newspapers. If anyone wants to write in depth articles like that for our blog, please let me or our president know. If you just have something to contribute occasionally, that would be great too.
RGVC also has a quarterly newsletter, The Chacahlaca. We haven't had one of our own newsletters published in a while, but you can view our archives. In cooperation with the other chapter, we are going to be contributing to their newsletter in the future.
The The Sabal by the Native Plant Project is another newsletter you should check out for lots of valuable information.