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We are conducting a large survey of distant clusters of galaxies using radiosources with bent jets and lobes as tracers. These radio sources are driven byAGN and achieve their bent morphologies through interaction with thesurrounding gas found in clusters of galaxies. Based on low-redshift studies,these types of sources can be used to identify clusters very efficiently. Wepresent initial results from our survey of 653 bent-double radio sources withoptical hosts too faint to appear in the SDSS. The sample was observed in theinfrared with Spitzer, and it has revealed $\sim$200 distant clusters orproto-clusters in the redshift range $z\sim0.7 - 3.0$. The sample ofbent-doubles contains both quasars and radio galaxies enabling us to study bothradiative and kinetic mode feedback in cluster and group environments at a widerange of redshifts.

Extragalactic Jets as Probes of Distant Clusters of Galaxies and the Clusters Occupied by Bent Radio AGN (COBRA) Survey