KillBait

Easily send URLs to Killbait news aggregator for selected categories and languages. 
This plugin integrates seamlessly with WordPress to automate the process.
<h3>External services</h3>
This plugin connects to the KillBait API to send the URLs of the posts from your site that you want to be published on KillBait. 
Each time a post is sent to KillBait, the URL of your post, the language code (“en” or “es”) in which you want your post to be shared on KillBait, and your API key for authentication with the KillBait API are sent. 
For more detailed information, refer to the <a href="https://killbait.com/api/doc" rel="nofollow ugc">KillBait API documentation</a>. 
This service is offered under the following <a href="https://killbait.com/legal/legal-advise" rel="nofollow ugc">terms of use</a> and <a href="https://killbait.com/legal/privacy-policy" rel="nofollow ugc">privacy policy</a>.

KillBait URL Sender

This plugin sends URLs of new posts to KillBait news aggregator for selected categories.

mohsenshahbazi

Automatically link specified keywords to specified urls on post content . the linking changed made forever on post content . also you can define limit of keywords linked on post content to prevent google link spam trap 
Please feel free to offer any feature suggestions you might have and I will consider them for future releases.

WP KeyLink

Automatically link specified keywords to specified urls on post content . the linking changed made forever on post content .

KillBait URL Sender vs WP KeyLink