| | | | | | | . | Platform | Air | Air | Air | OS X | Air | . | Multiple accounts | Yes | Yes | - | Yes | Twitter only | . | Single-column option | Yes | - | - | Yes | Yes | . | Search | Poor | Ok | Ok | Ok | Ok | . | Filters | Good | - | Good | Good | - | . | Groups | - | - | Excellent | Excellent | Excellent | . | Link shortener(s) | Poor | Excellent | Excellent | Ok | Excellent | . | Photo posting via | Twitpic | Twitpic | Twitpic | Pic.im | Twitpic, Webcam | . | | | | | | | . | | | | | | | . | Major social sites | | | | | | . | Twitter | Yes | Yes | Yes | Yes | Yes | . | Facebook | Yes | | Yes (beta) | | planned | . | FriendFeed | (old ver. only) | Yes | | planned | planned | . | Digg | Yes | | | | | . | Flickr | Yes | | | | | . | 12Seconds | | | Yes | | | . | Seesmic | | Yes | | | planned | . | Huddle | Yes | | | | | . | Tumblr | Yes | | | | |
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| | | | | | | . | Jaiku | | Yes | | | | . | | | | | | | . | Other social sites | | | | | | . | Basecamp | Yes | | | | | . | Identica | | Yes | | planned | planned | . | Laconica | | Yes | | | | . | Yammer | Yes | | | | | . | | | | | | | . | Curiosities | | | | | | . | Amazon | Yes | | | | | . | Ping.fm | Yes | Yes | | planned | planned | . | RSS feeds | Yes | | | | | . | StockTwits | | | Yes | | | . | Twitscoop | | | Yes | | | . | | | | | | | . | Number of services | 11 | 7 | 5 | 1 | 1 |
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