My knowledge of the wines of Portugal is limited. Though I do know they have some excellent wines, and they don't get the credit they deserve.
Well, August is certainly a good time to start learning more about the wines of Portugal. And a very good resource are my friends over at Catavino. They recently toured Portugal, visited a cork factory, visited some wineries and tasted plenty of wines. They are now posting about their tour, also providing much interesting information about Portugal and its wines. Please check out their site all this month as they will be posting about Portugal all month.
Their August Virtual Tasting will also be on Portugeuse table wines so you can find a number of wine reviews there. I will be participating as well, trying out some Portugeuse wines.