In the process of planning my plantings for the year I have done a lot of research on the Internet – I tend to suffer from Analysis Paralysis! I would have to say that one of the most useful resources I have come across in my reading is the information provide by Texas A&M.
There is a vast range of agricultural information available under various ‘**.tamu.edu’ websites. A lot of it relates to large scale agriculture, but there is also plenty of use for the small scale backyard gardener.
The information is of most use for those of us located in Texas (or in places with similar growing conditions), but some of it is relatively general in nature. Texas, after all, is a big place. The USDA hardiness zone ranges from 6 up in the Panhandle, all the way to 11 in the far South; combine that with the differing soils and rainfall patterns across the state, and Texas covers a very wide range of growing conditions!
One problem with searching for information on a particular gardening issue, is that a lot of the search results will be commercial in nature. ie: They will be trying to sell you the plant, not telling you if it is a good choice for you. By utilizing the resouces of A&M you are obtaining independent advice, from people who should know (hopefully!) something about the topic. For those of you don’t know, A&M(or ‘The Aggies’) have a long history of involvement in Agriculture, dating back to 1876.
The method I utilize is to search my area of interest utilizing the Site: restrictor provide by Google. In this example, I search for information on Blueberries, but only that found on **.tamu.edu type domains.
I encourage you to try this out for yourself. I have found it to be a great source of high quality gardening information.