First, oxoniensis has opened prompting for Porn Battle X! All fandoms and ships are welcome, but make sure you read the rules carefully, so that your prompt is counted. You can prompt up till Thursday, July 15th, 7 pm UK Time. Click on the banner to get there. :D
Second, there's a Which Hogwarts House Do I Belong In meme going on, where you post a comment and people tell you which House they think you're fit for.
Next, starcrossed is running a multi-fandom friending meme. So go make some new friends! That's always fun! :D
Last but not least, dante_s_hell is running The Kissing, Cuddling, Nuzzling, Wrap-You-Up-in-My-Clothes Comment Meme!. You submit prompts that deal with, well, anything in the title, lol. All fandoms are welcome. One prompt per comment and each prompt can be filled multiple times. :)