Display latest articles from wordpress in my external site

I want to display latest articles from wordpress in external site, here is page example: [login to view URL] 1. I could choose articles from what category in wordpress and how many to show 2. The article name will link to original article in wordpress 3. Under the title, there be first 50 words of the article (i can change 50 in the script) 4. I want the code will check the articles in wordpress ones a day and not each time page loads, so page will not have delay when loading. If this helps i will use in on pages in Magento. I do not want iframe because it is not good for SEO and not things based on RSS