Death search, commonly referred to as death record or obituary search, is a tool used on various online platforms to look for information about deceased individuals. It is utilized by different segments of society, including genealogists for historical and family tree research, law enforcement agencies for investigative purposes, and individuals seeking closure or understanding of family history.

These searches essentially access death records - a comprehensive collection of information that includes the full name of the deceased, their birth and death dates, the place of death, and often times, the cause of death. Some records may even provide additional details such as the names of the deceased’s parents, spouse, children, and the place of burial.

There is often a question about the legality and ethics around death search activities. It is vital to note that death records are recognized as public records. In a bid to hold government agencies accountable and enforce transparency, countries like the United States maintain that records such as birth, marriage, and death certificates must be made available to the public. Therefore, death search is not only legal but is respected as a right of the masses.

When it comes to the ethics, many argue that death search is most useful when it is employed respectfully and for good cause such as probate or genealogical research. It can often help individuals trace their ancestry, understand their family medical history, or get closure in some instances. Given that most obituaries also mention the kin of deceased, it can inadvertently reunite long lost family members.

However, the misuse of this tool can lead to unpleasantries such as identity theft and fraud. It is imperative that we use such powerful tools responsibly. Legislation also often checks on misbehavior by putting restrictions on the release of more sensitive information, especially for recent deaths.

It is interesting to note a rapidly increasing trend in death search activities in recent years. This is largely because the internet has digitized records, thereby making them more accessible to a larger audience.

In line with technological advancement, various websites have taken up the mantle to provide this service more conveniently. Websites like 'Ancestry', 'FamilySearch', 'FindAGrave', and the 'National Obituary Archive' not only provide us with exhaustive databases but have also designed user-friendly interfaces for easier searches.

In conclusion, death search, although a sensitive topic, has major societal benefits that cannot be overstressed. As with all tools, it becomes vital that death search is used appropriately and responsibly, maintaining respect for the deceased and their families.