I don`t think you should use link_to:
link_to('foo/bar', $title, $attributes, $secure);
Try something like this:
<li><a href="{{ URL::route('get_user', 'SomeUsername') }}">SomeUsername</a></li>
routes.php:
Route::get('users/{username}', array('as'=>'get_user', 'uses'=>'UserController@getUser'));
UserController.php:
class UserController extends BaseController{
public function getUser($username){
$user = User::where('username','=', $username)->first();
return View::make('users.show')
->with('user', $user);
}
blade view (users.show):
<body>
<h1> User {{$user->username }} page</h1>
</body>