<div>
You could star taking &nbsp;a look at this<br />
<a href="http://forums.asp.net/t/1144790.aspx/1" rel="ugc">http://forums.asp.net/t/1144790.aspx/1</a><br />
<br />
But I think you need you build this on your own on the most of the apps. There are some packages found in NuGet but I don't know if it incl udes to read your contacts. <br />
<br />
On facebook you need to create an app inside facebook on <a href="http://developers.facebook.com" rel="ugc">http://developers.facebook.com</a><br />
This will allow you to create calls when a user allows you to read its contacts i think<br />
<br />
Search for the api's that are available from the apps you want to add.
</div>


You could star taking  a look at this
http://forums.asp.net/t/1144790.aspx/1 [http://forums.asp.net/t/1144790.aspx/1]

But I think you need you build this on your own on the most of the apps. There are some packages found in NuGet but I don't know if it incl udes to read your contacts.

On facebook you need to create an app inside facebook on http://developers.facebook.com [http://developers.facebook.com]
This will allow you to create calls when a user allows you to read its contacts i think

Search for the api's that are available from the apps you want to add.

<div>
I am looking for an off the shelf solution
</div>


I am looking for an off the shelf solution

<div>
Thank you all for your help
</div>


<div>
<div class="content wysiwyg-content">
Need plug-in / code that I can use to offer visitors a way to invite their friends to my website from various sites.<br />
<br />
Ex: Import from facebook, gmail etc....
</div>
</div>


Need plug-in / code that I can use to offer visitors a way to invite their friends to my website from various sites.

Ex: Import from facebook, gmail etc....

.Net Contact Importer

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

ASP.NET

A social networking service is a platform to build social networks or relations among people who share similar interests, activities, backgrounds or real-life connections. A social network service consists of a representation of each user (often a profile), his or her social links, and a variety of additional services such as career services. Social network sites are web-based services that allow individuals to create a public profile, create a list of users with whom to share connections, and view and cross the connections within the system. Social networking sites allow users to share ideas, pictures, posts, activities, events, and interests with people in their network. Other popular services include Google+, LinkedIn, Instagram, Reddit, Pinterest, Vine and Tumblr.

Social Networking

A contact manager in its most basic form is a software program that enables users to easily store and find contact information, such as names, addresses and telephone numbers. Sophisticated contact managers provide calendar sharing features and allow several people in a company to access the same database. Some contact management systems have evolved into customer relationship management (CRM) systems to analyze and plan for an organization’s interaction with current and future customers.

Contact Management

Facebook is an online social networking service. After registering to use the site, users can create a user profile, add other users as "friends", exchange messages, post status updates and photos and receive notifications when others update their profiles. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists such as "People From Work" or "Close Friends". Notable features include a News Feed, Friends, a Wall, a Timeline, the Like button, Messages and an inbox, Notifications and Networks and groups.

Facebook

Twitter is an online social networking service that enables users to send and read short 140-character messages called "tweets". Users can group posts together by topic or type by use of hashtags – words or phrases prefixed with a "#" sign. Similarly, the "@" sign followed by a username is used for mentioning or replying to other users. Users access Twitter through the website interface, SMS, or mobile device app. The Twitter Web interface uses the Ruby on Rails framework. The service's application programming interface (API) allows other web services and applications to integrate with Twitter.