Okay, Twishma.sh is buzzing as a Google Trend. The site stresses that Tweech delivers Twitter’s hottest news, images, videos direct to you. Tweech means to see what is HOT on Twitter.
When I checked out the site it did provide some buzz worthy topics about hot subjects. Using Twitter Search you can see what topics are trending on Twitter, which are also hot related.
Both sources are excellent resources to conduct research for what is hot and trending on Twitter.