Those of us who work in francophone countries spend a lot of time bemoaning the lack of good BCC resources in French (or maybe that's just me?). For some great examples of french-language HIV communication, see the AIDES campaign page, which includes spots and print materials from the organization's work over the last ten years. Some of the spots may offend (and others may not be safe for work), but all push the envelope in terms of creativity. Of interest to those of you who work in Africa is "The Village", an advocacy PSA that won AIDES the Golden Lion award at Cannes in 2003.
Other sources for French BCC include the JHUCCP Media and Materials Clearinghouse and the PSI BCC Catalog. Both are great resources - the MMC tends to have older materials, but covers a broader range of health areas and materials from different organizations, while the BCC Catalog (currently being updated and upgraded) has newer materials from PSI.
What are your favorite communication resources in French?