chimein

Brand-hosted forums FACILITATES communication all the way across the customer life cycle. A website with visitor feedback is much more trusted than one without it. ChimeIn adds a dialog layer to your page without interfering with your content.
Fetaures: – simplest to add to site – as a separate layer, you have no legal liability on user generated content – ChimeIn does basic moderation of reported posts 
– ChimeIn user notifications create a social hook that makes your visitors return
As a free user, you will get limited moderation rights. By subscribing for ChimeIn you will get: – highlighted posts – you can highlight the most constructive visitor posts – insights and analytics on visitor behavior, content and sentiment
Don’t take the dialog to social media. It’s three times more likely that someone interested in you or your brand goes to your website, not your Facebook page. Don’t send them away, let them converse on your site.

ChimeIn Sidewall

Very easy setup, immediate dialog on the site.

Very simple, very efficient

Add Conversation to Your Site. ChimeIn adds a dialog layer to your page without interfering with your content.

Alex (Shurf) Frenkel

A widget to add Gravity Form in dialog popup, has an option to add a delay, a position, and an introduction page.
From version 0.3 can be opted in/out to work ont he homepage. 
From version 0.5 you can use a button to open the popup. 
From version 0.6, added an option to show the popup only ones in X views (random generated) – Requested by .
<h4>Under the hood:</h4>
<ul>
<li>Built on Gravity Form 1.5.2, and uses it for working.</li>
<li>jQuery UI added from WordPress itself</li>
<li>Uses jQueryUI CSS</li>
</ul>
Enjoy using Gravity Form Popup Widget? Please consider <a href="http://alex.frenkel-online.com/donate/" rel="nofollow ugc">making a small donation</a> to support the software’s continued development.

Gravity Forms Popup Widget

A widget to add Gravity Form in dialog popup, has an option to add a delay, a position, and an introduction page.

ChimeIn Sidewall vs Gravity Forms Popup Widget