This blog has only been around since 2006, so it's relatively new. However I was impressed with how well written it was and the depth of the information presented, including posts about activities in their area, gardening shows, and other side discussions related to gardening, such as the health benefits of gardening itself.
It's somewhat light on gardening tips, and not sure that reading this blog will help you become a better gardener, however it does have consistently engaging and well written posts that make it worthwhile to bookmark or drop into your feed reader of choice.
https://alamedagarden.blogspot.com/