a4 is a search network platform for businesses of all shapes and sizes across the world. Businesses can use this platform to connect with customers, vendors, markets, anybody and everybody across the world to increase their visibility. a4 combines search and social network to give exhaustive analytics about generating new clients, buying patterns and market information you want to access. Its free & easy to use. a4 let the people connect, collaborate, share through one platform about your business listings.