Testing annotations on Twitter using the API begins next week.

Twitter annotations are a future big innovation that many expect. With their help, both users and clients will be able to add more context to tweets, which will give more useful information. A new post in the group Twitter on groups.google.com Twitter API Announcement announces that testing will begin next week.



To be clear, this is just a test of a future feature through the API, so it will not be available to users yet.
')
Twitter recently updated the wiki annotation page with information about what to expect from a function in the future, where it published a list of 11 “recommended” types of annotations that you can start using. Here they are:

• webpage
• review
• song
• movie
• tvshow
• book
• product
• stock
• offer
• topic
• event

It is also worth noting that initially the annotations will be limited to 512 bytes, but over time, Twitter plans to increase this limit.