Memes are a great way to connect with other bloggers. I found taking part in them incredibly helpful and motivating when I first started blogging seriously. Whether it be coming up with lists (I LOVE lists!) or detailing your book hauls, it is a lot of fun and when you cannot come up with original content (for whatever reason) they really do help keep your blog active. Of course, doing too many memes can have a detrimental effect too, when I first started I signed up for ALL THE MEMES (or at least that is what it felt like) and it ended up being a little overwhelming.
I have cut down of the amount of memes I participate in regularly (Top Ten Tuesday and Stacking the Shelves are my two staples) but I do occasionally still post a Waiting on Wednesday, WWW Wednesdays or a Friday 56 post because I do enjoy them. I also discovered another weekly meme that is really fun called Top 5 Wednesday which I also partake in (although not every week).
(currently on hiatus)