Broken links at "Suggested Stars" page.

When browsing https://www.aavso.org/suggested-stars-ccd-observers, the following links appear to be broken:

• https://sites.google.com/site/aavsolpvsection/Home/lpv-humps (text "LPV Humps") - site not found.
• http://www.aavso.org/eb-section  (text "Eclipsing Binary section") - access denied, even when I'm logged in.
• http://www.garypoyner.pwp.blueyonder.co.uk/vsspolar.html (text "Long Term Polar Monitoring Programme") - the browser cannot connect to the server.
• http://deneb.astro.warwick.ac.uk/phsdaj/HQS_Public/HQS_Public.html (text "Hambug Survey CVs") - the browser cannot connect to the server.

Three other links at the page are working.

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Regards,

Dmitry