Justaskleslie.com: This blog answers readers' questions about jewelry, a format particularly helpful for jewelry novices. This time of year most of those questions, which come from readers, address appropriate gifts to buy various recipients like co-workers (answer: a sterling-silver drop pendant) or a daughter for Hanukkah (answer: a diamond and white-gold pendant with Hebrew letters). The descriptions typically link to products available on Ice.com, a leading online jewelry site where blogger Leslie Therriault, is a merchandiser.

What to be wary of when getting gift ideas from blogs

Availability: Bloggers reviewing the latest "It" item may jump the gun and do so before it's available in the United States or at all.

Price: While many bloggers try to link to stores where an item is available at the lowest price, some preference certain merchants where they earn affiliate revenue.

Freshness: Bloggers often get busy and let their blogs sit. Make sure deals haven't expired. Be prepared for stores to have sold out.

Personality: Get a sense for the interests and skills of your reviewer by reading through a couple of reviews before buying into their suggestions. You may fall victim to their eclectic tastes or purchase something for someone with more experience than your recipient.

Wordiness: Bloggers' reviews are rarely concise. Be prepared to be patient. The interesting insights may come several paragraphs into the review.

—Wall Street Journal