KMG recently linked to this article about keeping your garden healthy, and it points out that azaleas in too much sun will suffer from illness and disease. Well, you know mine have suffered from disease. These leaf spots appear to be indicative of illness, in the form of sun scald - see the burnt-looking tips and discoloration? (sorry the picture is fuzzy). There is a very similar picture in the article.
I moved another ill-planted azalea to the back yard a year or so ago, and it's looking healthier, though it didn't bloom this year either. Hopefully it and the new two transplants will eventually recover and do what they're supposed to do!
In place of the two azaleas, I eschewed planting another evergreen shrub, and instead planted some cheap-o perennials. Yes, I know, it's the wrong time of year to establish perennials, and that's why they're so cheap right now, but I couldn't resist -- these pictured were 1/2 off (and I bought another 12 daylilies at Lowe's last weekend for fifty cents each!):
In the shrub's hole went: unknown butter yellow daylily, pineapple sage, red hot poker, veronica. We bought the veronicas specifically because the ones at the nursery were COVERED with bees! I saw a butterfly hurry over to them as soon as we got them out of the car - awesome!
On a totally unrelated note, after loads of cherry tomatoes, I finally got my first red/normal-sized tomato this weekend, and it was so delicious in caprese salad with basil from the garden, too! Doesn't it just look like summer?