title: API to fetch twiiter feeds via cron
body: <p>We have developed a product that is used for employee engagement. It provides a feature that shows tweets posted by members of your office if they have authorised the site.
  The fetching of tweets is done by a periodic cron that is run at a regular interval at about 15 minutes. This cron searches for all the users who have authorised the site's app
  and makes requests twitter for their tweets. For every user one request is send to twitter</p>
  
  <p>Currently the system is using REST API (http://api.twitter.com/1/statuses/user_timeline.xml?user_id='xxxxxx') that is limiting number of request to 150 per hour. 
  We cannot make authenticated requests as it requires the user to authorise the call every time, which is not possible while making the requests by cron. So, with just 150 requests 
  and cron running four times an hour it is possible to fetch only 35-40 users data which cannot meet our requirements.</p>
  
  <p>Also we have explored the option of Site Streaming API. But it requires a persistent connection to be established with twitter which would be difficult while using the cron. Another concerns with Site Streaming API is that it is in beta version and the website should be whitelisted.</p>
  
  <p>Kindly assist us in selecting the best possible alternative that would help us meet the above mentioned objective</p>