Stone Temple Consulting examined Google’s indexation of Twitter data seven days after the search engine began including tweets and compared that to the tweets Google has indexed four months after they began.
There is clear evidence here that Google has significantly picked up their level of indexation, with an increase of 466%. This is a big deal, and probably brings a lot of incremental value to Twitter. However, Google is still NOT indexing 96.6% of the data. Note also that Google’s indexation of Twitter does go up over longer period times, to about 12% of all tweets tested – still leaving 88% not indexed.
Indexation of tweets in the first 7 days increased from about 0.6% in February to 3.4% in June. That’s a whopping 466% increase, but still leaves more than 96% of Tweets out of Google’s index. Read the rest at Stone Temple Consulting.