"Searching the Internet to create relevant word lists."
That is the moto of the website, it already says a lot, but i'll give a quick description in case you might need more:
AWLG allows you to build a wordlist, for your various password cracking needs and not only, formed out of words found in relation with specific keywords of your choice that are searched for on the web using search engines(i don't know which one(s), i suspect google only though :)). You can add exclusion keywords also to narrow down your search in case you know of such bloat keywords that might interfere with the effective search of your target keywords. A number of additional options for further narrowing of the results are offered also, like Remove common words, leetspeak or capitalization. Read more on the about page or roll your eyes over the example use cases.