LAokay is a directory of things to do, places to see, businesses in LA, and more. It has tens of thousands of entries, arranged in a fast-loading, logical, easy to use manner. It gets a lot of hits, is highly useful, and also covers Orange, San Diego, Riverside, San Bernardino, Ventura, Santa Barbara & San Luis Obispo counties.
(Full disclosure, I do database programming for them. However, I’ve used LAOkay for years, long before we had a business relationship.)