Since December, Gigablast has been very busy rolling out new services and expanding their index. Today, they're unveiling links to "Related Pages" at the top of all serp. Gigablast defines related pages as, "relevant search results which do not necessarily contain the searcher's query terms.contain the searchers query terms." A bit more about Gigablast's Related Pages here.
Two weeks ago we blogged about Gigablast expanding their index size to over 1.5 billion pages.