The most important online directories for your business can vary depending on your industry and location, but here are seven general directories that can be helpful:

1. Google My Business – Google My Business is a free tool that allows businesses to manage their online presence across Google, including Google Search and Google Maps. This is a critical directory for any business that wants to be found online.
2. Yelp – Yelp is a review platform that allows consumers to search for and rate local businesses. It is particularly important for businesses in the restaurant, hospitality, and retail industries.
3. Facebook – Facebook is a social media platform that allows businesses to create a page and interact with customers. It is a good directory for businesses of all types, but particularly those that want to engage with customers on social media.
4. LinkedIn – LinkedIn is a professional networking platform that can be useful for B2B businesses, as it allows you to create a company page and connect with other professionals in your industry.
5. Yellow Pages – Yellow Pages is an online directory that allows consumers to search for businesses by category and location. It is a good directory for businesses that want to be found by people who are specifically searching for their type of product or service.
6. Angie’s List – Angie’s List is a directory that provides reviews and ratings of local service providers, including contractors, plumbers, and other home services. It can be useful for businesses that provide home services.
7. TripAdvisor – TripAdvisor is a directory that focuses on the travel and tourism industry. It provides reviews and ratings of hotels, restaurants, and attractions, and can be useful for businesses in the hospitality industry.

These directories can be a good starting point for businesses looking to establish an online presence and increase their visibility to potential customers. However, it is important to remember that the directories that are most important for your business may depend on your specific industry and location.