Zittle's Marina which is out the Johnson Point road has good local info, tackle, and the best launch ramp in our local area (ie high or low tide you can still get in and out!)
Also, Tom's outboard which is just off East Bay Drive in Olympia has tackle and info as well.
Most local info seems to indicate using pt. Wilson Darts and Jigging them off of the Nisqually area. Some action off of Johnson pt. too.