How can I get my site included in the Wayback Machine?
Much of our archived web data comes from our own crawls or from Alexa
Internet's crawls. Neither organization has a "crawl my site now!"
submission process. Internet Archive's crawls tend to find sites that
are well linked from other sites. The best way to ensure that we find
your web site is to make sure it is included in online directories and
that similar/related sites link to you.
Alexa Internet uses its own methods to discover sites to crawl. It may
be helpful to install the free Alexa toolbar and visit the site you
want crawled to make sure they know about it.
Regardless of who is crawling the site, you should ensure that your
site's 'robots.txt' rules and in-page META robots directives do not
tell crawlers to avoid your site.
When a site is crawled, there is usually at least a 6-month lag, and
sometimes as much as a 24-month lag, between the date that web pages
are crawled and when they appear in the Wayback Machine.
In some cases, crawled content from certain projects may appear in a
much shorter timeframe — as little as a few weeks from when it was
crawled. Older material for the same pages and sites may still appear
separately, months later.
Best Answer
If you have the time, you can save the pages (one by one) yourself. This page describes how to do it.
OR
OR if you want more pages, do as indicated here:
Edit: I have found this question on Web Applications which provides some answers. Which also might render my answer a bit pointless since another user there provide it already. If there are mods reading this, should I delete this answer?