A while ago, I realized that Google voluntarily indexed my twitter account. For quite some time, I used to manually tweet the blog post links and article links to my Twitter account. Plus, I also was tweeting the hints, tips and the like to keep it real. But, I thought Google was keeping a track of these. I considered that Twitter might label it as "no-follow". However, Google has perhaps regarded it as the one that offers authority to these links. I want to understand the concept for my future reference. So, please let me know what do you think is the actual scenario?