General Purpose Coarse-Grained Force Field 
Curious to see what a crowded membrane really looks like? Check out Clement's masterpiece:
C. Arnarez, S.J. Marrink, X. Periole. Molecular mechanism of cardiolipin-mediated assembly of respiratory chain supercomplexes. Chem. Sci., 2016, online. doi: 10.1039/C5SC04664E
We published a perspective on computational modeling (computational 'microscopy') of cell membranes in the imaging series of the Journal of Cell Science:
H.I. Ingólfsson, C. Arnarez, X. Periole, S.J. Marrink. Computational 'microscopy' of cellular membranes.
J. Cell Science, 2016,
Keep your membranes fluid: New parameters for cholesterol, ergosterol, and hopanoids
M.N. Melo, H.I. Ingólfsson, S.J. Marrink. Parameters for Martini sterols and hopanoids based on a virtual-site description. JCP, 143, 243152 (2015); http://dx.doi.org/10.1063/1.4937783
D.H. de Jong, S. Baoukina, H.I. Ingólfsson, S.J. Marrink. Martini straight: boosting performance using a shorter cutoff and GPUs. Comp. Phys. Comm., 2015, in press. doi:10.1016/j.cpc.2015.09.014
See the paper for details. Here you can find the required input parameter files to benefit from the increased speed options.
Wonpil Im and coworkers developed a GUI for Martini as part of CHARMM-GUI. You can build complex bilayers, micelles, vesicles, and more, with proteins embedded. Try it out here!
The paper describing Martini Maker is now online:
Y. Qi, H.I. Ingólfsson, X. Cheng, J. Lee, S.J. Marrink, W. Im. CHARMM-GUI Martini Maker for coarse-grained simulations with the Martini force field. JCTC, 2015. abstract
Martini DNA parameters are now available at 
the website:
For the publication, see:
J.J. Uusitalo, H.I. Ingólfsson, P. Akhshi, D.P. Tieleman, S.J. Marrink
Martini coarse-grained force field: extension to DNA, JCTC(doi: 10.1021/acs.jctc.5b00286)