2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/2912Given their proximity and age differences, nearby groups of young stars are valuable laboratories for investigations of disk evolution and diversity. The estimated 10-Myr age of groups like the TW Hydrae Association provides a strong constraint on disk evolution timescales and fills a significant gap in the age sequence between 1-Myr-old T Tauri stars in molecular clouds and 50-Myr-old nearby open clusters. I review the results of recent and on-going studies of dusty disks in three nearby groups --TW Hya, $η$ Cha and MBM 12-- that suggest rapid evolution of inner disks. However, it is unlikely that there is a universal evolutionary timescale for protoplanetary disks, especially when the influence of companion stars is taken into account.6 pages, 2 PostScript figures, to appear in "Young Stars Near Earth: Progress and Prospects", ed. R. Jayawardhana and T.P. Greene, ASP Conference SeriesAstrophysicstext