Come and get it! Or, go and get it! The content I used to get LGPedia back online is an XML dump at archive.org. Download it so you have a copy. I guarantee I don't plan on letting it ever go offline again, but plans sometimes change. The only way to make sure LGPedia survives forever is to make sure as many people as possible have a copy.
That said, I plan an scraping any remaining CiW-related content I can find online, and have even considered writing a custom web crawler that simply searches the web for Cassie-related content and indexes it for us. The scraper I plan on unleashing will grab content from phpBB forums (I'll add more forum types later) and create either static pages or XML files of the results. I'm thinking XML files, as I can more easily style the results as well as make them searchable.
If you run any type of CiW-related website, especially if it's database-driven in any way, please consider sending a copy of the content my way. If your site is still active, I can do as I've done with LGPedia, at Miles Becket's request, and make it read-only. Or, as I plan on doing with LGPedia once the official is back up, make it inaccessible and just redirect the traffic to the original site.
At any rate, if you want a copy of LGPedia, come and get it! I can help you get a local copy of it accessible, should you so desire, or, just grab it in case something happens to my copy and/or the archive.org copy.