Microsoft is currently on a streak of increasing cloud storage capacity for its customers. Earlier this week, Microsoft more than tripled the storage capacity for SkyDrive Pro users from 7 GB to 25 GB. The latest cloud mailboxes to receive a storage boost are for Exchange Online and Office 365, which will increase from 25 GB to 50 GB starting this Friday. Customers should see their storage capacity double sometime between now and November. According to the Office 356 blog, the following services plans will receive the upgrade: Exchange Online Plan 1, Office 365 Small Business, Midsize Business, Enterprise E1, Government G1, and Education A1. Shared mailboxes and Resources mailboxes will grow to 10 GB as well. A chart of the new plans follows below.