From Bitcoin Wiki
This is the approved revision of this page, as well as being the most recent.
Third party sites to (re-)submit a raw, signed transaction to the network; sometimes referred to as "pushtx":
- https://www.f2pool.com/pushtx (Needs referral code from pool operator.)
- http://eligius.st/~wizkid057/newstats/pushtxn.php (Contact wizkid057 directly if you need a transaction mined.)
- https://wallet.la/pushtx (Expired https certificate)