In shade white and variegated foliage stands out. Annuals which will grown in shade Lunaria, bizzy lizzy, pansy and viola, nastiurtium, begonia semperflorens, tuberous begonia, browallia, wallflowers, cleome, coleus, larkspur, chinese forget me not, foxglove, lobelia, sweet alyssum, mimulus, forget me not, nicotiana, geranium, schizanthus, cineraria, thungergia,
Some will cope with quite deep shade, eg begonia semper, bizzy lizzy, mimulus, and forget me not, oh and cineraria, torenia
So lots there to go at. I love annuals as they're easy to grow and not fussy and they self seed around, so free plants which must be a good thing ;D