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mikegreenberg eg1290 BrianBuzz
Sparks is definitely not anything like hashtag in Twitter. From what I can tell, there no way to get a feel for trending topics across a mass population in G+. In this regard, Twitter has value.
2 years, 5 months ago on Why Twitter Should be Very Worried About Google+
I agree that the140 character limit is now pointless, and circles will make it much easier to set up relevant flows of information than possible using Twitter or even something like Hoot Suite. And the Google+ app for Android is nice.
The one aspect of Twitter that I'm not seeing in Google+ is hashtags. It's really useful to set up search on a particular hashtag and watch the flow of comments. I'm not sure how something like that can be set up in Google+, although obviously its still early.