ExpertGlossary

A linear end-fire antenna, consisting of three or more half-wave elements (one driven, one reflector, and one or more directors). Note 1: A Yagi antenna offers very high directivity and gain. Note 2: The formal name for a "Yagi antenna" is "Yagi-Uda array."

Free question asking and answering service which allows Yahoo! to leverage social structures to create a bottoms up network of free content.

See also:

• Yahoo! Answers

One of the original, most popular, and most authoritative web directories, started by David Filo and Jerry Yang in 1994.

The Yahoo! Directory is one of a few places where most any legitimate site can pick up a trusted link. While the cost of $299 per year may seem expensive to some small businesses, a Yahoo! Directory link will likely help boost your rankings in major search engines.

See also:

• Yahoo! Directory
• Newly Added Sites

Research tool which webmasters can use to see what pages Yahoo! has indexed from a website, and what pages link at those pages.

See also:

• Yahoo! Site Explorer

Yankee bonds are bonds issued in dollars in the United States by overseas companies and governments.

The purpose is to raise more money than the issuers may be able to borrow in their home markets, either because there is more money available for investment in the United States, or because the interest rate the issuers must pay to attract investors is lower.

US investors buy these bonds as a way to diversify into overseas markets without the potential drawbacks of currency fluctuation, foreign tax, or different standards of disclosure that may be characteristic of other markets.