Easily add a forum like log in/out form to your site.
WordPress Login Box (WPLB) lets you add a log in/out box to your website.
WPLB includes an options panel which gives you control over your form.
This plugin lets you choose custom links for a forgot your password page,and registration page. It also lets you choose a url that you users will be redirected to after they log-in/out. You can also enable the option to not redirect your users to WP-Login after failed login attempts! This plugins works well with other member plugins, and can help you create an overall better user experience.
You can view a sample wordpress login form by visiting this link.