Life was so much easier when Twitter wasn't worried about making money. Some spectacular venture capital deals propelled the company's value to over $1 billion, and user trends shot bragging rights up proportionately. Its ascendancy resulted in large part from the efforts of the Twitter ecosystem where companies developed 70,000 applications that have made life easier or more measurable for Twitter users. It's easy to lose track of how much of our Twitter interaction lies on third-party apps – from photo sharing to smartphone applications to URL shortening.As long as Twitter's functionality ambitions remained modest, the ecosystem knew it would thrive. As we head toward the Chirp conference for Twitter application developers concerns over the future of the ecosystem abound. Here are five reasons why the companies around Twitter may start to worry about the microblogging juggernaut.
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Twitter has struggled to bring more users onto its website. Approximately
Twitter's a pretty lucky company. Few get two bytes at the hype apple in rapid succession, but this
The Twitter-verse continues to get interesting. I've always felt that the returns are to be found around 

