11/22/13 – Watched a few videos on hashtags #. I do believe I understand them now! Attempted to go here to watch a couple of #conversations, but site is down. Down for good? Not sure…
“Due to Twitter’s API changes, TweetGrid will be down for a bit.”
11/18/13- Hooray! Information in detail on using Twitter! I have a Twitter account, but use it sparingly because I never understood what hashtags were all about. Looks like this week I may be able to finally get the gist of Twitter. TWEET TWEET
magsfield481 
Looks like TweetGrid is gone. SearchHash is still working and is handy for saving tweets. http://searchhash.com/