| http://www.w3.org/ns/prov#value | - Paid accounts start at $9 per month, though the free account offers plenty of space for small teams with only a few projects (1GB of storage for up to 15 pages or projects).Basecamp37signals' Basecamp has become something of a standard in project management apps, which among other things means it integrates with many other services and tools, including invoicing applications, time
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