These are newer plugins that show good potential and are on their way to the Best New plugins category.
Add beautiful image slider to your WordPress blog! Awesome effects, fancy templates, point-and-click wizard. Fully responsive, pure CSS fallback.
Youtube Channel Gallery
Show a YouTube video and a gallery of thumbnails for a youtube channel.
SEO Interlinking can automatically link keywords or phrases in posts, pages, categories, comments or tags on your site.
Use Any Font
Embed any font in your website
SEO for Wordpress
Seo for wordpress plugin will automatically use your post title , content as seo title and seo meta description on new and old posts/pages.
Mail Subscribe List
Allows users to enter their name and email address to subscribe to a simple mailing list which is available to modify in the WordPress admin area.
A powerful and beautiful quiz plugin for WordPress.
Uploads, themes, plugins, and your DB can be automatically backed up to Amazon S3, Google Drive, FTP, or emailed, on separate schedules.
WP RSS Multi Importer
Imports & merges multiple feeds. Make blog posts or display on a page, excerpts w/ images, 8 templates, categorize and more.
UppSite - Go Mobile (iPhone, Android, HTML5)
Mobile for WordPress by UppSite turns your existing WordPress site into powerful mobile apps (iPhone, Android, Windows Phone, HTML5)
Wordpress Poll is completely ajax powered polling system. This poll plugin supports both single and multiple selection of answers.
NextGEN Facebook OG
Adds Open Graph meta tags for Facebook, G+, LinkedIn, etc., plus sharing buttons for FB, G+, Twitter, LinkedIn, Pinterest, tumblr.
If you have any other plugins that we should known, please let me known at the comment.