Topsy

Based off the price, I'd be hesitant to blindly recommend Topsy unless there is a need for the kind of big data it provides access to. If access to every single Tweet ever sent about your brand is important, then there is nothing else out there will do what Topsy does. At $12,000 per user, this is definitely not a product for the small social team, but if you manage a larger brand where reporting and brand sentiment mean a lot, then you owe it to yourself to evaluate Topsy Pro

• Access to every single tweet ever sent since the start of Twitter.
• Immediate access to results - extremely easy to generate search queries.
• Multiple ways to visualize data.

• Pricing is steep and on a per-user basis.
• Limited amount of data sources - Twitter, links and videos.

Quite simply, there is no other option out there with the amount of data we can get from Topsy. Others (like Radian6) have a large amount of data, but it isn't as easy to find, and creating reports is too cumbersome. Report generation in Topsy takes seconds, not minutes

The few times we have asked questions, they were answered instantly by our own account rep

• Immediate access to campaign performance data in social. Our sales team regularly requests metrics from campaigns several years old, and with Topsy, we can dig in and find it. This assists in helping them in their sales pitches to new clients and renewing deals with previous clients.