The first one.......

Continuation of 3rd Para
TwitterFeed – Will automatically give the direct feed links to the Twitter users of our blogs. And so that they can easily access our blogs and it's corresponding updates.

TwitThis – It is a simplest way to send Twitter messages about our blogpost. The TwitThis button is a cute little button that you can add to the end of your blog posts making it readily available to your readers once they've finished browsing your post.

Twitter Counter – It is just used as a counter to keep reminding that how many Twitter users are visiting our blogs totally and so on.

Twitter Badge – It is just a badge that can be placed on our blog, to let others know that we are the Twitter user.

TwitterTools – It is a plug-in that creates integration between your WordPress blog and your Twitter account.

Twitme – This plug-in allows people the choice of making a twit out of your blog posts.
Continued later...