Google has launched hashtag search, which will enable users to see Google+ posts using the hashtag at the right side of the regular search results.
Google's Zaheed Sabur, who announced the feature on Google+ said that it will be initially available for English language search on Google.ca and Google.com.
Only the posts that were shared publicly or with you (if you are a Google+ user) will be visible in Google search. By clicking on the post, users will be taken to Google+ from where the search is reproduced.
Links from other social networks such as Twitter and Facebook for the same search will also appear at the bottom.Google Launches Hashtag Search for Google+ Posts on Search Result Page!,