If you are looking for a very simple Email Alert Scheduler for Wordpress then you should try this simple plugin: Wordpress Plugin: Email Alert Scheduler our you can clone it from https://github.com/araneta/Schedule-PR. This plug in will allows you to send messages to your subscribers at a specified time. You can use this plug in for Press Release. Here are the steps to create an email alert:
1. Add a new Schedule
To add a new schedule, first you have to login to Wordpress backend and go to Schedule Email Alert > Schedule Entry. On Add Schedule page enter : Subject, Message and Schedule Time. This message will be sent to subscriber emails at the Scheduled time.
Autopost is a web application using Codeigniter framework and Twitter bootstrap. Here are some of its features:
Across Time Zones
Fbtweetbot allows you to post messages in different timezone easily
Post messages to Facebook and twitter accounts with an image or link. No Problem!
Post messages to your Facebook account or your community page account.
Autopost allows you to create queues for your tweets easily
Autopost allows you to integrate RSS Feed of your blogs or any sites with your Twitter or Facebook accounts.