The Bloomington Stock Center added over 5200 stocks in 2015, bringing our total number of stocks to almost 59,000. In 2015 we added >1600 TRiP RNAi stocks, >1000 Mi{MIC} stocks and we began acquisition of the InSITE collection. InSITE insertions, like Mi{MIC}s, carry attP sites that allow you to swap in cassettes carrying your DNA of choice. We also brought in a variety of other exciting new stocks, including UAS-mir and UAS-mir-sponge stocks, Rab knockout lines, transcriptional calcium sensors, Mi{MIC}-based Recombinase-Mediated Cassette Exchange lines expressing tagged fusion proteins under their own power and more. We will provide an overview of these and other new acquisitions and highlight some important sets of pre-existing useful stocks. As always, we hope we will give you ideas for experiments or new ways to explore biological processes. We welcome all suggestions and questions so come by and see us!