Combine yogurt, parsley, cilantro, lemon juice, oil, garlic, paprika, cumin, salt and pepper in a small bowl. Reserve 2 tablespoons of the sauce; cover and refrigerate. Place salmon in a medium sealable plastic bag. Pour in the remaining yogurt mixture, seal the bag and turn to coat. Refrigerate for 10 (or up to 30) minutes.

Meanwhile, preheat grill to medium-high.

Oil the grill rack (see Tip). Remove the salmon from the marinade, blotting any excess. Grill the salmon until it is browned and just cooked through, 4 to 5 minutes per side. Top the salmon with the reserved sauce and garnish with lemon wedges.

To skin a salmon fillet: Place a fish fillet on a clean cutting board, skin side down. Starting at the tail end, slip the blade of a long, sharp knife between the fish flesh and the skin, holding the skin down firmly with your other hand. Gently push the blade along at a 30 degree angle, separating the fillet from the skin without cutting through either.