Here the list of the best and unknown wordpress plugin of this summer. Some of them do a really fantastic job to enhance your wordpress site on engagement, productivity, marketing, SEO and more.

1. The BEST
(and unknown)
WordPress Plugins
Summer 2015 edition

2. Surveys by Feedback Cat
Surveys by Feedback Cat Helps You Grow Your
Business Or Blog By Making It Easy To Gather
Feedback Using Onpage User Surveys.
SEE DETAILS

3. PeepSo
PeepSo is the next-generation of Social Networking
plugin for WordPress. It allows you to create an online
community in seconds.
SEE DETAILS

4. QuickieBar
QuickieBar makes it easy for you to convert visitors by
adding an attractive and easily customizable conversion
bar to the top or bottom of your site.
SEE DETAILS

5. Inline Related Posts
Inline Related Posts AUTOMATICALLY inserts related
posts INSIDE your content, capturing immediately the
reader's attention.
SEE DETAILS

6. Plugin Groups
Organize plugins in the Plugins Admin Page by creating
groups and filter types.
SEE DETAILS

7. WPi Designer Button
Create Buttons, Call-To-Action (CTA), Share Buttons &
Twin Buttons anywhere in wordpress using button
shortcode.
SEE DETAILS

8. Tracking Code Manager
Manage ALL your tracking code and conversion pixels.
Compatible with Fb Ads, Adwords, WooCommerce, Easy
Digital Downloads and many more.
SEE DETAILS

9. de:comments (premium)
The most powerful plugin for WordPress comments.
SEE DETAILS