2011 was a good year for DNP-NMR review article. Here is a list of five review articles that give a broad overview of the research field for experts in the field and newcomers.
Sze, K., et al., Dynamic Nuclear Polarization: New Methodology and Applications. 2011: p. 1-28.
http://dx.doi.org/10.1007/128_2011_297
Prisner, T. and M.J. Prandolini, Dynamic Nuclear Polarization (DNP) at High Magnetic Fields, in Multifrequency Electron Paramagnetic Resonance. 2011, Wiley-VCH Verlag GmbH & Co. KGaA. p. 921-946.
http://dx.doi.org/10.1002/9783527633531.ch24
Mieville, P., et al., NMR of Insensitive Nuclei Enhanced by Dynamic Nuclear Polarization. Chimia, 2011. 65(4): p. 260-263.
http://dx.doi.org/10.2533/chimia.2011.260
Günther, U., Dynamic Nuclear Hyperpolarization in Liquids. 2011: p. 1-47.
http://dx.doi.org/10.1007/128_2011_229
Atsarkin, V.A., Dynamic nuclear polarization: Yesterday, today, and tomorrow. Journal of Physics: Conference Series, 2011. 324(1): p. 012003.