The Best Useful Widgets/Plugins services for Blog/Website !

Widgets/Plugins are very useful enhancement for a Blog or Website. These features (widgets/plugins) increase the standard, functionality, & beauty of a Blog or Website. It is required to find out right widget/plugins services & use them. The following widget services are useful for any Blog or Website.

1. Meta Tags
    It slice the content of Blog or Website  as category so it is easy for both search engines & viewers to find out related & interested content.

2. Related Content
    Which is also a great functionality for promotion a Blog or Website. This plug ins make link with previously written related content so that viewers can find more interested content implies more page-views.

3. Translation Tool       
     It allows readers to translate the blog posts into several different languages with simple click. It is useful to parse international readers.

4. Share This
    This is a way for people to recommend useful/interested content to each other through Social Networking & Social Media. 'Share This' is a one of the great blog promotional services.

5. Subscription Tool
    It allows viewers to comeback on Blog once again a post is updated or published. This plug-ins is useful to get loyal readers.     

6. Next/Previous Post
   It allows viewers to jump next or previous post. It is one of the most easier toll to keep a reader engage against interest.

I think these are not all at all. Please share your views regarding best widget/plug-ins services for Blog or Website.