SeoMoz has released an awesome tool for link analysis, OpenSite Explorer a couple of days back that has taken the SEO world by storm. Taking advantage of an free offer for registered members for the first 48 hrs I had a productive time checking out what promises to be the best link analysis tool available (Y! Site Explorer lags behind in comparision)
The entire gamut is available, right from Top Level metrics (Total number of links, no of linking root domains, Page Authority, Domain authority) right down to lower derivatives of these metrics. Open Site Explorer gives you data up to 10,000 links, anchor text lists, in-built filters, key phrase distribution, comprehensive pie chart displays, enhanced metric comparisions with an updated SEOmoz API that can help you use any of the data in your applications.
Follow Rand unveil it all here.
And if talk that Yahoo link data might fade out is true, Open Site Explorer from SeoMoz is all set to wear the crown eventually in this space.