Group-hug health site DailyStrength is being acquired by HSW International, which operates HowStuffWorks in China and Brazil (but is a separate company). Terms were not disclosed, but this has all the signs of a mercy acquisition.

DailyStrength has zero presence in China or Brazil. HSW International plans on keeping the site up, but it’s main interest seems to be in integrating DailyStrength’s social media technology platform on its international informational sites.

DailyStrength was only ever able to attract about 700,000 unique visitors a month to its 500 health communities and self-help forums covering everything from weight loss to coping with cancer. The company raised between $5 and $7 million from Redpoint Ventures. We reviewed it last year.

iMedix is a social search engine focussed on healthcare that has raised $2 million from angel investors. When you type in a search term, an auto-completed list of health and medical terms pops down to help guide your search. Type in “toe,” and it suggests “wound of toenail,” “tingling toe” “broken toe,” “blue toes,” “absence of toe,” and “hammer toe,” among others. Along the side column are profiles of iMedix members who may be interested in health topics related to the search. In this case, “sport injuries.” If the iMedix members are online, you can start a chat with them. If they are not online, you can send them an e-mail.

So as you search, you not only find links to health articles and other information on the Web, you also find other people you can talk to about that health topic. The idea, says co-founder Iri Amirav, is not only “to change the way patients make health-related decisions, but we also want those patients to connect together with other patients. So that with one click, they can connect with others who suffer the same disease.”

Each member creates a profile with as much or little information as they like, including tags indicating what health categories, diseases, and medical conditions they are interested in. These tags are informed by the same auto-complete database used for search terms so that both people and search terms can be matched more easily.

The other social aspect of the site is that each search result can be voted up or down. The site is based on the open-source Lucene search engine, which then gets trained by the users to generate better results. You don’t need to be a member to use the search engine. Anyone can vote a result up or down. But a member’s vote carries more weight, and the more active members carry the most weight.

The original concept for iMedix was a blogging platform for patients. That has evolved to more private forms of patient-to-patent communication, coupled with a health information resource that all members can help make better. Blogging will probably be worked back into the site, but erring on the side of privacy to begin with is a good idea. Although, all that valuable information in the one-on-one chats is being lost. Perhaps there should be an option to make chats public if both parties agree and think that others can benefit. There should also be the ability to vote on people to help sort out who are the best authorities on a topic-by-topic basis. But all in all, iMedix is off to a healthy start.