You might also find the Bird Feeding Chart to be a handy resource. Try plain suet or suet mixes, but, don't offer suet in hot weather unless you can be assured it won't turn rancid. Some commercial suet cakes are rendered in such a way that they can withstand extreme heat. Try a variety of fruits. For example, robins might go for plumped-up raisins, that is, raisins that have been soaked in water and softened up.
Orioles are particularly fond of orange slices.
Scan through the Aspects web site pages to learn more about different types of feeders. Go visit a local hardware store, major discount store, or wild bird feeding store and study the feeders first hand. Think about your bird feeding site. If you want a wide variety of birds, choose a platform feeder. If you want just finches or very small, agile birds like chickadees, choose a tube feeder with small portals.