Here are a collection of ongoing valentine contests on twitter :

• @nutri1 (www.nutri.com)

1. Follow @Nutri1 on Twitter and become a fan on Facebook here: http://www.facebook.com/#/pages/Nutriblog/96466285138?ref=ts

2. Send an @reply to @Nutri1 and use hashtag #hearthealth. You may not use hashtags from other contests in your @replies to us

3. Visit www.nutri.com and enter a valid email address in the “News and “Specials” box (mid page, at right)

*Note: You must be 18 years or older and be able to verify your age. You must have a U.S. Mailing Address.
Contest ends February 14, 2010 and a $50 Visa Gift Card will be given to the contest winner.
No purchase necessary. The winner will be selected at random from all eligible entries by @ArteWorks_SEO You must reply to the DM with your U.S. mailing address and age verification. We have the right to exclude people who aren’t abiding by our contest rules or the Twitter terms of service. We have the right to modify the rules as needed.

•  Tweet to Win a Year of Fresh Roses -@calblooms(www.californiablooms.com)

To celebrate Valentine’s Day and the launch of the new California Blooms iPhone App, we are giving away a Grand Prize of a Year of Fresh Roses to one lucky winner, as well as Bouquet of 24 Roses every day from February 1st through the 12th. The Year of Fresh Roses consists of a Bouquet of 24 Roses once a month for a year. As always, there may be additional winners throughout the length of the contest.

There are 3 ways to enter the contest, and you can enter as many times as you wish.

1. Simply Follow Us On Twitter and tweet a message that includes the following link to download our Free iPhone App and the following text: Get the @calblooms Free iPhone app in time for Valentine’s Day and #sendroses http://bit.ly/9oo3oR

2. Look for our tweets throughout each day of the contest for other ways to enter.

3. Get 5 entries: Download our Free iPhone App, use the “Tell a Friend” feature on the homepage, forward it to as many friends and family as you can and copy us on the email (iphone@californiablooms.com). Each email received from a unique email address equals 5 entries, so tell everyone you know. Be sure to copy us on the email since this is how we will tally your entries. DUPLICATE EMAILS WILL NOT BE COUNTED.

If you are one of the lucky winners, you can send the roses to anyone you’d like in the USA, including yourself!

• #ILoveSMART Valentine’s Twitter Contest! (@SMARTcares)

All @SMARTCares Twitter followers are eligible to join the contest. Twitter users who are not @SMARTCares followers will have to follow the account first to be able to join. Check : http://www.twitlonger.com/show/8nktg

CONTEST MECHANICS:

Tell us why you love SMART & get a chance to win a SMART Bro Prepaid Plug-it! All you have to do is put the hashtag #IloveSMART in your tweet to be able to join.

We will give 5 SMART Bro Plug-its to the Top 5 Best Answers & we will raffle off 5 more SMART Premium Items to the rest of the entries.

You may opt not to put @SMARTCares in your contest entries to save on space! The #ILoveSMART hashtag is enough to qualify your entries.

The #IloveSMART Valentine’s contest will run from Feb 13 – 17, 2010, 11:59 PM. Followers may send as many entries as they can. 🙂

• www.care.com Contest @careatcare

Win a movie ticket for Valentine’s Day movie or a trip to Los Angeles

Check : http://www.facebook.com/caredotcom

• Valentine twitter contest!

For a chance to win a copy of “Never Been Gone” signed by Carly Simon, follow @202friends.

• “WHERE’s my Valentine” Photo Contest

Want a chance to win $250 from @WHERE ? Take part in our “WHERE's my Valentine” Photo Contest http://bit.ly/bKLsjL
 
Make WHERE a part of your romantic evening and you could win $250 for a night out on the town!

Step 1: Take a cute couples picture with WHERE. While out on your Valentine’s date, pose with your sweetheart and your other love – the WHERE app. Or, if you don’t have a date, let WHERE be your Valentine! “Couples” photos can either feature two people and WHERE, or just you and WHERE.

Step 2: Post your picture on our Facebook wall http://www.facebook.com/WHEREapp. Your picture will then appear in our “fan photos” section on Facebook. All pictures must be posted by Tuesday February 16.

Step 3: Vote for your favorite WHERE couples picture by commenting on the fan photo you like the best.

The person whose photo has the most positive comments will win a $250 Amex gift card to make the love last beyond Valentine’s Day!

Tips – Be funny, cute or creative. Show WHERE some love! The most important thing is to make sure WHERE, on any mobile device, is clearly seen in your picture.

• A Valentine’s Day Contest

20 Books-20 Winners ( @theblackraven) –  http://bit.ly/cqlcW0

Let me know if you find more.

Happy Valentine’s Day!!