Generally, we release a UIWebView object into the dealloc method of the UIView ...if we create it in interface builder. But you can also create and release the UIWebView programatically.

See the code below..

- (void) viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    self.iwebView = [[[UIWebView alloc]initWithFrame:exampleFrame] autorelease];
    self.iwebView.scalesPageToFit = YES;
    self.iwebView.delegate = self;
    self.iwebView.autoresizingMask = webViewBed.autoresizingMask;
    [myView addSubview:self.iwebView];
}
- (void) viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];

    [self.iwebView removeFromSuperview];
    self.iwebView.delegate = nil;
    self.iwebView = nil;
}