Mads Phikamphon

Almost Users Only is a plugin that limits public access to your blog. Visitors that are not logged in can only view a specific public page. If they are trying to reach other pages they will automatically be redirected to the public page.
If a visitor is logged in, he can view all the pages/posts on the blog (just like if it were a normal WordPress installation).
The public page can for example be used to display information about the site and a guide to how visitors can get an account.
IMPORTANT: WordPress still publish RSS feeds, so posts can still be read that way. Pages should be save though.

Almost Users Only

If logged in, the visitor can view all the pages/posts on the blog. If not logged in, the visitor can only view a specific public page.

sukum

This plugin pulls the user details from a given SugarCRM URL and if there are no corresponding users creates users in WordPress.
Similarly it allows the user to sync selected WordPress users to SugarCRM as Accounts/Contacts/Users.
Admin is logged in to SugarCRM transparently and can manage SugarCRM from WordPress.
If ‘auto sync’ is checked, a user created in wordpress is automatically synced to SugarCRM as Accounts/Contacts/Users.

Sync SugarCRM Users

Sync SugarCRM Users to WordPress and vice versa

Almost Users Only vs Sync SugarCRM Users