Introduction. Ultra-high photonic crystal nanocavities and their applications. Pillar microcavities. Crystalline whispering gallery mode resonators in optic and photonics. Silicon microring and microdisk resonator passive and active devices: novel cavity shapes and resonance control. Active semiconductor microresonators. Silicon micro-ring resonators for manipulating light on a microelectronic chip. Electro-optic polymer ring resonators for millimeter-wave modulation and optical signal processing. Polymer ring microlasers. Distributed microresonators for slow light, controllable dispersion and enhanced nonlinearity. Dispersion limitations of coupled micro-resonator structures. Densely integrated optical microresonator bases components for the access network. Optofluidic ring resonator sensors. All-Dielectric photonic-assisted radio front-end technology. Nonlinear optics and application of crystalline WGM resonators. Undecided. ?