General Purpose Coarse-Grained Force Field 
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)
We just opened a new Martini lipid webpage, with even more lipids and supporting files. See for yourself here.
The Insane Paper is out. Read about the background, the philosophy and features.
T.A. Wassenaar, H.I. Ingólfsson, R.A. Böckmann, D.P. Tieleman, S.J. Marrink. Computational lipidomics with insane: a versatile tool for generating custom membranes for molecular simulations. JCTC, 11:2144–2155, 2015. doi: 10.1021/acs.jctc.5b00209 abstract
Setting up and running many association simulation is now easier than ever. Check out the new tool here and find the paper here.
T.A. Wassenaar, K. Pluhackova, A. Moussatova, D. Sengupta, S.J. Marrink, D.P. Tieleman, R.A. Böckmann. High-throughput simulations of dimer and trimer assembly of membrane proteins. The DAFT approach. JCTC, 11:2278–2291, 2015. DOI: 10.1021/ct5010092 abstract