Dropbox, the most popular consumer online storage service, announced Tuesday that it is doubling the capacity of its plans but keeping its prices the same. The company is also now offering a new 500GB service plan. Dropbox's service plans begin with 2GB of free storage, and
its first paid upgrade -- Dropbox Pro -- had been 50GB for $9.99 per month or $99 per year. The 100GB plan had been $19.99 per month or $199 per year.