AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
fruux - Free service that takes care of your contacts, calendars and more so you don't have to.
Wondershare MobileGo - Wondershare MobileGo is a dependable and convenient application that can help you to reinforcement or exchange information from your Android mobile phone to the PC and access particular applications to deal with your records effortlessly.
FullContact - Put the power of full contact information into your web or mobile apps.
Droid Explorer - A tool to manage your rooted Android device with the simplicity of Windows Explorer.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.