Free Link Building Tools from BuzzStream:

• Email Research Tool - Enter a name, company and website and this tool will generate Google searches to find their email address.
• Link Building Query Generator - Automatically creates link building search queries to help you find link opportunities. Saves them as an OPML file for easy import into monitoring dashboards.
• Extract Domain from a URL - Takes a list of URLs, extracts the domain and saves the list as a CSV file.
• Extract Descriptive Text from a URL - Takes a list of URLs, extracts the descriptive text at the end of the URL and saves the list as a CSV file (e.g., turns www.abc.com/programs into "programs").
• Extract Links from HTML - Copy and Paste HTML and extract links with Anchor text into a CSV file.
• Build outreach lists from blogrolls - Enter in a set of URLs and this tool will find their blogrolls and build an outreach list that includes the blogroll members.
• Extract Page Title, Description and Keywords from URLs - Enter a list of URLs and this tool will return the title tag, keywords and description for them.

These are the paid for tools:

• Link Buzzmarker - Turn a web page into a link contact for link building campaigns. Automatically collects metrics and contact information.
• Influence Evaluation Tool - Import a list of domains and BuzzStream collects key metrics for all of them (e.g., PageRank, mozRank, unique visitors, cache date, site age, inbound links, etc.)
• List Builder - Filter contacts to build outreach lists. Filter criteria includes site and page metrics, relationship history, tags, link status and many others.
• Outreach module - Designed to enable you to scale your outreach without sacrificing the personalized, relationship-based communication required to get links.
• Social Influencer Research Tool - Find people taking about your brand and your topics on twitter, blogs, social bookmarking sites, etc. Automatic collection of metrics for sites mentioning your keywords.