Possible Clues:

• Where workers gather
• Places where bee-hives are kept, honey farms
• Workers will make a beeline for them
• They're abuzz with activity
• Strange sepia air of honey bees here
• Things getting a lot of buzz about them?
• A programme's introduction - one with stars on many buzzers!
• Where the bees are
• Beekeepers' places
• Secretary puts up one sign at home for the workers