We present HST/STIS optical and Gemini/NIFS near-IR IFU spectroscopy, and archival HST imaging of the triplet of super star clusters (A1, A2 and A3) in the core of the M82 starburst. Using model fits to the STIS spectra, and the weakness of red super
giant CO absorption features (appearing at ~6 Myr) in the NIFS H-band spectra, the ages of A2 and A3 are $4.5pm1.0$~Myr. A1 has strong CO bands, consistent with our previously determined age of $6.4pm0.5$~Myr. The photometric masses of the three clusters are 4--$7times10^5$~Msol, and their sizes are $R_{rm eff}=159$, 104, 59~mas ($sim$2.8, 1.8, 1.0~pc) for A1,2 and 3. The STIS spectra yielded radial velocities of $320pm2$, $330pm6$, and $336pm5$~kms for A1,2, and 3, placing them at the eastern end of the $x_2$ orbits of M82s bar. Clusters A2 and A3 are in high density (800--1000~cmt) environments, and like A1, are surrounded by compact Htwo regions. We suggest the winds from A2 and A3 have stalled, as in A1, due to the high ISM ambient pressure. We propose that the 3 clusters were formed textit{in-situ} on the outer $x_2$ orbits in regions of dense molecular gas subsequently ionized by the rapidly evolving starburst. The similar radial velocities of the 3 clusters and their small projected separation of $sim 25$~pc suggest that they may merge in the near future unless this is prevented by velocity shearing.
In this article we present the integral field spectroscopy (IFS) wiki site, http://ifs.wikidot.com; what the wiki is, our motivation for creating it, and a short introduction to IFS. The IFS wiki is designed to be a central repository of information,
tips, codes, tools, references, etc., regarding the whole subject of IFS, which is accessible and editable by the whole community. Currently the wiki contains a broad base of information covering topics from current and future integral field spectrographs, to observing, to data reduction and analysis techniques. We encourage everyone who wants to know more about IFS to look at this web-site, and any question you may have you can post from there. And if you have had any experience with IFS yourself, we encourage you to contribute your knowledge and help the site develop its full potential. Before re-inventing the wheel, consult the wiki...
