@tasogare If you are an ACM member, you can use the Authorizer service to enable free access to your papers. The service creates a special link that you can use on two web-sites - for example your institutional web-site and your personal web-site, so that visitors to your web-site, will be redirected to PDF download of your papers.

This effectively allows open-access to your papers, as long as you have a web-site.