Amazon SNS (Simple Notification Service)!

To sum it up, you can:

Pushover is a simple push notification service that integrates easily into web apps, network monitoring systems, shell scripts, and anything else that needs to send alerts to your mobile devices.

DeskCon integrates your Android Device in the Desktop. Receive Notifications, Files and Commands from your mobile Device on your Desktop PC. The Data is send over a secure TLS Connection. The Connection is encrypted and authenticated with self-signed Certificates (RSA-2048 PK).

Kopy is the best way to copy/paste your text across your devices.

QPush is a free service that lets you easily push text and links from PC to iPhone. No need to send emails to yourself or wait for Evernote to sync anymore!

Shoot makes it easy to send a big batch of photos or a large video directly from your device to your friends.

Everyday problem: a file needs to be copied from a desktop computer to a mobile device (or another desktop computer somewhere on the internet).

The Panacea application is a free download and it allows you to send messages quickly and easily via an HTTP request into the application. It support iOS, Android and Blackberry.

Once you sign up on this site, you will be able to create public and private groups. You can send extended push notifications to any of these groups. You can invite people to join your group right from here. Anybody can download the XNotify app from the Apple or Google store for free and join your groups to start receiving extended notifications from you.

Notify My Android is an easy, fast and reliable way to push notifications from anywhere to your Android Notify My Android allows you to deliver push notifications from any application to your Android device, through our easy-to-use API that can be integrated into your software.

LinkPush allows you to push the current page you are viewing in your browser to your Android phone (all versions of Android OS supported) with a single click.How to use:1. Install Android app2. Install browser extension3. Click LinkPush button with the page you want to push open4. Click LinkPush on your phone to load the page(Optionally enable GTalk notifications to receive instant messages with links.)

Notifo is a mobile notifications platform empowering developers to build their own services with a scalable and reliable notifications API. The Notifo API is a simple and affordable way to add notifications to any web app or project.

Push notifications for your site and mobile. Easy connection, automatic scripts. Absolutely free.New, exclusive formats browser notifications are available today for all of our customers. - Interactive notifications with "call to action" element- Messages with two options of interaction - Push notifications with a large image

Pushalot is a platform for receiving custom push notifications to connected devices running Windows Phone or Windows 8. Custom means that those push notifications can be sent from virtually any source, as long as that source can interact with our open REST API.

Pushwoosh is a real time cross-platform push notification service.