The Panasonic TY-ER3D4MUs are universal glasses compatible with the Full HD 3D standard and offer decent build quality and appreciably better picture quality than cheap glasses.
Xpand X104 YOUniversal ($90 each for large blue/black version with RF dongle)
For the narrow niche of viewers who need active 3D glasses that work with most 3D TVs regardless of brand, the Xpand YOUniversals are great. For everyone else, they're overkill. Read the full review.
The Samsung SSG-4100GB universal glasses are cheap and fine for casual use, but an uncomfortable fit and too-open design mean 3D enthusiasts will want other primary glasses.
Looking for specs and pricing? Compare these active-3D glasses head-to-head.
For more 3D info in 2D, check out CNET's 3D TV Buying Guide.