In the final installment of our series on using social media for business, let’s look at LinkedIn, which is the most powerful professional networking tool available today. LinkedIn allows you to connect with business contacts and share information in a highly focused way. This is because it features a “gated-access” approach to connections, where contact requires either a preexisting relationship or the intervention of a contact. On LinkedIn, you can only connect to someone you already know or to someone who is “introduced” to you on the site by another connection. This feature serves to build trust among the service’s users and results in contact lists that can be used extensively for business purposes. Continue reading →