Cloud storage opportunities for consumers are increasing rapidly. Those looking to store photos, music libraries and other personal data online have a number of choices, including both free and fee-based services. Large-capacity free e-mail services such as Gmail have become personal storage vaults for some users. However, storing data on an e-mail account probably isn’t a shrewd move for anyone who has security in mind, said Terrance Bush, spokesperson for Chicago-based FastServers.net.