We will evaluate the feasibility, toxicity, and effectiveness of combination chemotherapy (paclitaxel/carboplatin)plus combination targeted therapy (bevacizumab/erlotinib)in the first line treatment of patients with carcinoma of unknown primary site. There is limited experience with either bevacizumab or erlotinib in the treatment of cancers of unknown site but given the heterogeneous nature of the tumor, it is likely that inhibition of angiogenesis pathways and/or the EGFR pathway are effective strategies in at least a proportion.